EBK PHYSICS FOR SCIENTISTS AND ENGINEER
9th Edition
ISBN: 9780100454897
Author: Jewett
Publisher: YUZU
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 12, Problem 12.2QQ
Consider the object subject to the three forces in Figure 12.3. Choose the correct statement with regard to this situation from the choices (a)–(d) in Quick Quiz 12.1.
Figure 12.3 (Quick Quiz 12.2) Three forces act on an object. Notice that the lines of action of all three forces pass through a common point.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Please help me by showing step by step.
Figure shows a block of mass m resting on a 20∘ slope. The block has coefficients of friction μs = 0.80 and μk = 0.47 with the surface. It is connected via a massless string over a massless, frictionless pulley to a hanging block of mass 2.0 kg.
a)
What is the minimum mass m that will stick and not slip?
Express your answer to three significant figures and include the appropriate units.
b)
If this minimum mass is nudged ever so slightly, it will start being pulled up the incline. What acceleration will it have?
Express your answer to three significant figures and include the appropriate units.
O Each diagram in Figure 12.20 shows the
magnitude and direction of the forces
acting on an object.
Find the resultant force in component
form in each case.
F,
F.
F,
F10
F,
Figure 12.20
Chapter 12 Solutions
EBK PHYSICS FOR SCIENTISTS AND ENGINEER
Ch. 12 - Consider the object subject to the two forces of...Ch. 12 - Consider the object subject to the three forces in...Ch. 12 - A meterstick of uniform density is hung from a...Ch. 12 - For the three parts of this Quick Quiz, choose...Ch. 12 - The acceleration due to gravity becomes weaker by...Ch. 12 - A rod 7.0 in long is pivoted at a point 2.0 m from...Ch. 12 - Prob. 12.3OQCh. 12 - Two forces are acting on an object. Which of the...Ch. 12 - Prob. 12.5OQCh. 12 - A 20.0-kg horizontal plank 4.00 in long rests on...
Ch. 12 - Prob. 12.7OQCh. 12 - In analyzing the equilibrium of a flat, rigid...Ch. 12 - A certain wire, 3 m long, stretches by 1.2 mm when...Ch. 12 - The center of gravity of an ax is on the...Ch. 12 - A ladder stands on the ground, leaning against a...Ch. 12 - Prob. 12.2CQCh. 12 - (a) Give an example in which the net force acting...Ch. 12 - Prob. 12.4CQCh. 12 - Prob. 12.5CQCh. 12 - A girl has a large, docile dog she wishes to weigh...Ch. 12 - Prob. 12.7CQCh. 12 - What kind of deformation does a cube of Jell-O...Ch. 12 - What are the necessary conditions for equilibrium...Ch. 12 - Why is the following situation impossible? A...Ch. 12 - Prob. 12.3PCh. 12 - Prob. 12.4PCh. 12 - Your brother is opening a skateboard shop. He has...Ch. 12 - A circular pizza of radius R has a circular piece...Ch. 12 - Prob. 12.7PCh. 12 - Prob. 12.8PCh. 12 - Prob. 12.9PCh. 12 - Prob. 12.10PCh. 12 - A uniform beam of length 7.60 m and weight 4.50 ...Ch. 12 - A vaulter holds a 29.4-N pole in equilibrium by...Ch. 12 - A 15.0-in uniform ladder weighing 500 N rests...Ch. 12 - A uniform ladder of length L.and mass m1 rests...Ch. 12 - A flexible chain weighing 40.0 N hangs between two...Ch. 12 - A uniform beam of length L and mass m shown in...Ch. 12 - Figure P12.13 shows a claw hammer being used to...Ch. 12 - A 20.0-kg floodlight in a park is supported at the...Ch. 12 - Prob. 12.19PCh. 12 - Review. While Lost-a-Lot ponders his next move in...Ch. 12 - John is pushing his daughter Rachel in a...Ch. 12 - Prob. 12.22PCh. 12 - One end of a uniform 4.00-m-long rod of weight Fg...Ch. 12 - A 10.0-kg monkey climbs a uniform ladder with...Ch. 12 - A uniform plank of length 2.00 m and mass 30.0 kg...Ch. 12 - A steel wire of diameter 1 mm can support a...Ch. 12 - The deepest point in the ocean is in the Mariana...Ch. 12 - Assume Youngs modulus for bone is 1.50 1010 N/m2....Ch. 12 - A child slides across a floor in a pair of...Ch. 12 - Evaluate Youngs modulus for the material whose...Ch. 12 - Assume if the shear stress in steel exceeds about...Ch. 12 - When water freezes, it expands by about 9.00%....Ch. 12 - A 200-kg load is hung on a wire of length 4.00m,...Ch. 12 - A walkway suspended across a hotel lobby is...Ch. 12 - Review. A 2.00-m-long cylindrical steel wire with...Ch. 12 - Review. A 30.0-kg hammer, moving with speed 20.0...Ch. 12 - A bridge of length 50.0 m and mass 8.00 104 kg is...Ch. 12 - A uniform beam resting on two pivots has a length...Ch. 12 - Prob. 12.39APCh. 12 - The lintel of prestressed reinforced concrete in...Ch. 12 - Prob. 12.41APCh. 12 - When a person stands on tiptoe on one foot (a...Ch. 12 - A hungry bear weighing 700 N walks out on a beam...Ch. 12 - The following equations are obtained from a force...Ch. 12 - A uniform sign of weight Fg and width 2L hangs...Ch. 12 - A 1 200-N uniform boom at = 65 to the vertical is...Ch. 12 - Prob. 12.47APCh. 12 - Assume a person bends forward to lift a load with...Ch. 12 - A 10 000-N shark is supported by a rope attached...Ch. 12 - Why is the following situation impossible? A...Ch. 12 - A uniform beam of mass m is inclined at an angle ...Ch. 12 - Prob. 12.52APCh. 12 - When a circus performer performing on the rings...Ch. 12 - Figure P12.38 shows a light truss formed from...Ch. 12 - Prob. 12.55APCh. 12 - A stepladder of negligible weight is constructed...Ch. 12 - A stepladder of negligible weight is constructed...Ch. 12 - (a) Estimate the force with which a karate master...Ch. 12 - Two racquetballs, each having a mass of 170 g, are...Ch. 12 - Review. A wire of length L, Youngs modulus Y, and...Ch. 12 - Review. An aluminum wire is 0.850 m long and has a...Ch. 12 - Prob. 12.62APCh. 12 - A 500-N uniform rectangular sign 4.00 m wide and...Ch. 12 - A steel cable 3.00 cm2 in cross-sectional area has...Ch. 12 - A uniform pole is propped between the floor and...Ch. 12 - In the What If? section of Example 12.2, let d...Ch. 12 - Figure P12.67 shows a vertical force applied...Ch. 12 - A uniform rod of weight Fg and length L is...
Additional Science Textbook Solutions
Find more solutions based on key concepts
The temperature of the Universe at recombination was about 3000 K. Use Wien’s law to calculate the peak wavelen...
Loose Leaf For Explorations: Introduction To Astronomy
The Rankine temperature scale (abbreviatedR) uses the same size degrees as Fahrenheit, but measured up from abs...
An Introduction to Thermal Physics
The magnitude of the electric field.
Sears And Zemansky's University Physics With Modern Physics
An electric motor has an effective resistance of 32.0 and an inductive reactance of 45.0 when working under l...
Fundamentals Of Physics - Volume 1 Only
The formula for the sum Sn of the geometric series Sn=a+ar+.....arn−1 .
Mathematical Methods in the Physical Sciences
Is Earths inner core solid and the outer core liquid because the inner core is cooler than the outer core? Expl...
Conceptual Integrated Science
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- You are working in an ice skating rink and have been asked to hang a new banner on the wall. Your friend is helping you so that the ladder does not collapse by exerting a force FAL at an angle ϕ relative to the horizontal. See the diagram below.The ladder has a length L and makes an angle of θ with respect to the vertical wall. You have a mass, mY, and are a horizontal distance x from the wall. The ladder has a mass of mL. Because the wall is slick, and the ice on the floor is slick, the frictional forces acting on the ladder are negligible. Find a formula for the magnitude of the force that your friend must exert to keep the ladder from falling, in terms of the following variables: x,L,mY,mL,θ,ϕ. Then use the following values to get a number for the magnitude of FAL θ = 34.4 degreesϕ = 26.144 degreesx = 1.612 metersL = 6.2 metersmY = 98.0 kgmL = 32.34 kgarrow_forwardThe block shown in (Figure 1) has a mass of m = 90 kg, a height H = 1.8 m, and width L = 2.4 m . It is resting on a ramp that makes an angle = 23° with the horizontal. A force P is applied parallel to the surface of the ramp at the top of the block. What is the maximum force that can be applied without causing the block to move? The coefficient of static friction is μ = 0.41, and the center of mass of the block is at the center of the rectangle. Figure 0 H ^ 1 of 1 Part A There are two ways the block can move: by slipping up the ramp or by tipping over. First consider the block slipping up the ramp. What is the magnitude of the normal force between the block and the ramp? Express your answer to three significant figures with appropriate units. N = Submit Part B Pslip = Submit Part C uА Value What is the maximum magnitude of P that can be applied before slipping would occur, assuming the block does not tip? Express your answer to three significant figures with appropriate units. Request…arrow_forward(a) What is the minimum force of friction required to hold the system of the figure below in equilibrium? Let w, = 100 N and w, = 35.0 N. (b) What coefficient of static friction between the 100 N block and the table ensures equilibrium? (c) If the coefficient of kinetic friction between the 100 N block and the table is 0.21, what hanging weight should replace the 35.0 N weight to allow the system to move at a constant speed once it is set in motion? N W2arrow_forward
- A professional athlete tears their Achilles tendon. There are two muscles in the back of the leg that pull upward on the Achilles tendon, as shown in the image below. (The Achilles tendon is the gray part above the heel) F₂ (250 N) F, (250 N) (a) Using information from the image above, what is the magnitude of the total force on the Achilles tendon? Number (b) What is the direction of the force on the Achilles tendon in the image? Up Down Left 20% 20° Rightarrow_forwardThe block shown in (Figure 1) has a mass of m = 75 kg, a height H = 1.1 m, and width L = 1.6 m. It is resting on a ramp that makes an angle 0 = 34° with the horizontal. A force P is applied parallel to the surface of the ramp at the top of the block. What is the maximum force that can be applied without causing the block to move? The coefficient of static friction is μs = 0.42, and the center of mass of the block is at the center of the rectangle. What is the maximum magnitude of P that can be applied before tipping would occur, assuming the block does not slip? Express your answer to three significant figures with appropriate units. Ptip = 649 N Submit Previous Answers Correct Figure W H F x 2 of 2 Part F What is the maximum magnitude of P that does not cause motion of the block? Express your answer to three significant figures with appropriate units. ☐ μÅ Pmax = |667.611 N Submit Previous Answers Request Answer × Incorrect; Try Again; 5 attempts remaining Provide Feedback ? Review…arrow_forwardIn order to lift a shovelful of dirt, a gardener pushes downward on the end of the shovel and pulls upward at distance l2 from the end, as shown below. The weight of the shovel is m g → and acts at the point of application of F →2. Calculate the magnitudes of the forces F →1 and F →2 as functions of l1, l2, mg, and the weight W of the load. Why do your answers not depend on the angle θ that the shovel makes with the horizontal?arrow_forward
- This problem concerns the concept of tension in a rope. Consider a rope subjected to a pulling force on its two ends as shown in (Figure 1). The rope is stationary. An arbitrary point P divides the rope into a left-hand segment L and a right-hand segment R. Figure wi L pull R 232 pull 1 of 3 Part A For segment R and segment L to hold together, they must exert forces on each other. What is the direction of the force exerted on segment R by segment L? View Available Hint(s) left right Submit Part B FLR Assume that segment R exerts a force of magnitude T' on segment L. What is the magnitude FLR of the force exerted on segment R by segment L? Give your answer in terms of T and other constants such as g. ► View Available Hint(s) = Submit % ΑΣΦ www ?arrow_forwardDetermine the magnitude of the force exerted by cracker (a) on the nut. Determine the magnitude of the force exerted by cracker (b) on the nut.arrow_forwardA safety mechanism of a lift is simplified by the figure below. A 300 kg block is to slide over an inclined surface. The coefficient of friction between the block rollers and the inclined surface is p=0.3. If the system is in equilibrium, work out the following: (a) Free body diagram of the complete system. (b) Find the normal force N on the block and the maximum friction force Fmax. (c) Find the mass of the lift m, required to satisfy the equilibrium and prevents the block moving downward, (d) Find tension force in the cable (e) If the mass of the lift is 150 kg, p=0.3, and surface angle is increased to 30° will the block move upward? Explain the answer. 300 kg block 20° Cable Lift moarrow_forward
- Problem 10 : A cord connected at one end to a block which can slide on an inclined plane has its other end wrapped around a cylinder resting in a depression at the top of the plane as shown in (Figure 1). Part A Determine the speed of the block after it has traveled 1.30 m along the plane, starting from rest. Assume there is no friction. Express your answer using two significant figures. Part B Determine the speed of the block after it has traveled 1.30 m along the plane, starting from rest. Assume the coefficient of friction between all surfaces is μ = 0.0280. Since the block is much lighter than the cylinder, ignore tension in the string when calculating the normal force on the cylinder. Do not ignore tension in the string when calculating the net torque (including friction) on the cylinder.arrow_forwardJamal and Dayo are lifting a large chest, weighing 293 lb, by using the two rope handles attached to either side. As they lift and hold it up so that it is motionless, each handle makes a different angle with respect to the vertical side of the chest (see figure below). If the angle between Jamal's handle and the vertical side is 25.0° and the angle between Dayo's handle and the vertical side of the chest is 30.0°, what are the tensions in each handle? (Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) FT₁ FTD = 309.76 Your response differs from the correct answer by more than 10%. Double check your calculations. N 324.20 × Your response differs from the correct answer by more than 10%. Double check your calculations. N 25.0° 30.0°arrow_forwardWhen looking at this diagram, what would the digram be if you are assuming it is in static equilibrium, with the expression for the net force F_net, x being in the x direction?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
University Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSON
Introduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Lecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
University Physics (14th Edition)
Physics
ISBN:9780133969290
Author:Hugh D. Young, Roger A. Freedman
Publisher:PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:9781107189638
Author:Griffiths, David J., Schroeter, Darrell F.
Publisher:Cambridge University Press
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:9780321820464
Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...
Physics
ISBN:9780134609034
Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:PEARSON
Static Equilibrium: concept; Author: Jennifer Cash;https://www.youtube.com/watch?v=0BIgFKVnlBU;License: Standard YouTube License, CC-BY