Questions 5 and 6 refer to the diagram below. m A box of mass m is being pushed up a ramp by a force F acting along the ramp, as shown. The ramp makes an angle to the horizontal, and the coefficient of kinetic friction between the box and the ramp is μ. The normal force and the frictional force exerted on the box are F and f, respectively. 5. Which of the following free-body diagrams correctly shows the forces exerted on the box as it moves up the ramp? (A) (E) FN F F mg mg mg (B) A ohibitedRprint F FN mg Unauthorized copying or reuse of any part of this page is illegal. -8- GO ON TO TI 6. If the force F has a magnitude of 2mg, which of the following is a correct expression for the acceleration of the box? (A) g sine (B) 2g (C) 8 (D) (2-cos@)g (E) g(2 sine cose) - -

Questions 5 and 6 refer to the diagram below. m A box of mass m is being pushed up a ramp by a force F acting along the ramp, as shown. The ramp makes an angle to the horizontal, and the coefficient of kinetic friction between the box and the ramp is μ. The normal force and the frictional force exerted on the box are F and f, respectively. 5. Which of the following free-body diagrams correctly shows the forces exerted on the box as it moves up the ramp? (A) (E) FN F F mg mg mg (B) A ohibitedRprint F FN mg Unauthorized copying or reuse of any part of this page is illegal. -8- GO ON TO TI 6. If the force F has a magnitude of 2mg, which of the following is a correct expression for the acceleration of the box? (A) g sine (B) 2g (C) 8 (D) (2-cos@)g (E) g(2 sine cose) - -

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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The block in the figure below has a mass 5.6 kg and it rests on an incline of angle 8. You then push on the block with a force of F = 37 N, directed up the slope as shown. Assume the incline is smooth and determine the angle of the incline if the block moves with constant speed. 38.62 x Did you draw a free body diagram and identify the forces acting on the block? Take the x direction to be parallel to the incline and the y direction to be perpendicular to the incline.º Submit Answer F OC
Find I and J values and please answer all parts of this question 2. Block 1 (m1 = 2 kg) is resting on top of block 2 (m2 = 2 kg) on the surface of a table. On a sheet of paper, draw the free body diagrams for block 1 and block 2 using the two-subscript notation from class. After completing the free body diagrams, enter below each force and its x & y-components. Remember that the x-component is the "i" component and the y-component is the "j" component. (Use g = 10 m/s2) FORCES on BLOCK 1 Weight force on block 1 by Earth W1E = 0 i + -20 j N Normal force on block 1 by block 2: (two-subscript notation) Value = ——i + ——-j N FORCES on BLOCK 2 Weight force on block 2 by Earth W2E = 0 i + -20 j N Normal force on block 2 by block 1: (two-subscript notation) Value = ——i + ——j N Normal force on block 2 by Surface: (two-subscript notation) Value = ——i +——- j N
Two blocks are connected by a massless rope. The rope passes over an ideal (frictionless and massless) pulley such that one block with mass m1 = 12.25 kg is on a horizontal table and the other block with mass m2 = 7.5 kg hangs vertically. Both blocks experience gravity and the tension force, T. Use the coordinate system specified in the diagram. a.) Assuming friction forces are negligible, write an expression, using only the variables provided, for the acceleration that the block of mass m1 experiences in the x-direction. Your answer should involve the tension, T. b.) Under the same assumptions, write an expression for the acceleration, a2, the block of mass m2 experiences in the y-direction. Your answer should be in terms of the tension, T and m2. c.) Carefully consider how the accelerations a1 and a2 are related. Solve for the magnitude of the acceleration, a1, of the block of mass m1, in meters per square second. d.)Find the magnitude of the tension in the rope, T, in newtons.
This problem pertains to the diagram on the right. Two dock workers pull a 1500 kg boat. a) What is the sum of force A and force B? Give the x and y components, in units of Newtons. b) What is acceleration of the boat? Give the x and y components, in units of m/s2. c) What is the magnitude of the boat’s acceleration, in units of m/s2? d) What is the direction of the boat’s acceleration? Give your answer as an angle measured relative to the x axis.
Block 1 (10 kg) is located on the surface of a table. A rope pulls on block 1 with a horizontal tension of 58 N to the right and a vertical tension of 60N upward. The coefficient of kinetic friction between the block and the surface equals 0.2. On a sheet of paper, draw the free body diagram for block 1 using the two- subscript notation from class. After completing the free body diagram, enter below each force and its x & y-components. Remember that the x-component is the "i" component and the y-component is the "j" component. FORCES on BLOCK 1 Weight force on block 1 by Earth W1E : jN Tension force on block 1 by Rope T1R = jN %3D Normal force on block 1 by Surface N1S = i+ jN %3D Frictional force on block 1 by Surface f1S = i + jN !! Submit Answer Tries 0/2 What is the acceleration a of block 1? j m/s2 a =
Still think that unit conversion isn't important? Here is a widely publicized, true story about how failing to convert units resulted in a huge loss. In 1998, the Mars Climate Orbiter probe crashed into the surface of Mars, instead of entering orbit. The resulting inguiry revealed that NASA navigators had been making minor course corrections in SI units, whereas the software written by the probe's makers implicitly used British units. In the United States, most scientists use Sl units, whereas most engineers use the British, or Imperial, system of units. (Interestingly, British units are not used in Britain.) For these two groups to be able to communicate to one another, unit conversions are necessary. The unit of force in the SI system is the newton (N), which is defined in terms of basic Sl units as 1 N=1 kg · m/s?. The unit of force in the British system is the pound (lb), which is defined in terms of the slug (British unit of mass), foot (ft), and second (s) as 1 lb =1 slug ·…
Figure 1 The diagram above (Figure 1) shows the situation for the three questions below (questions 1, 2, and 3). The numbers will change in each question but the situation is the same. Adam is pushing a cart which rolls on the floor with negligible friction. There is a book on top of the cart. The book moves with the cart (the book does not slide on the surface of the cart).
In , the man has a mass of 65 kg and the crate has a mass of 110 kg. The coefficient of static friction between his shoes and the ground is μs = 0.4 and between the crate and the ground is μc = 0.3. A) Determine if the man is able to move the crate using the rope-and-pulley system shown. B) Prove your answer to part A by calculating the static frictional force F�between the man's shoes and the ground required to move the crate and the maximum static frictional force Fmax which can be developed. Express your answers in newtons to three significant figures separated by a com_ma.
A 10 N force is applied to a 4.0 kg block at rest on a table. The block experiences a frictional force. Draw a free-body diagram of the block. What is the weight of the block? What is the normal force on the block? If the coefficient of kinetic friction is µk = 0.20, what is the kinetic frictional force on the block? What is the net force on the block? What is the acceleration of the block from the net force? Just 1, 2, and 3 please!
Please include a diagram.
Block 1 (9 kg) is located on the surface of a table. A hand pushes horizontally to the right on block 1 with a normal force of 108 N. The coefficient of kinetic friction between the block and the surface equals 0.8.On a sheet of paper, draw the free body diagram for block 1 using the two-subscript notation from class. After completing the free body diagram, enter below each force and its x & y-components. Remember that the x-component is the "i" component and the y-component is the "j" component.FORCES on BLOCK 1Weight force on block 1 by Earth W1E = i + j N Normal force on block 1 by Surface N1S = i + j N Normal force on block 1 by Hand N1H = i + j N Frictional force on block 1 by Surface f1S = i + j N What is the acceleration a of block 1?a = i + j m/s2
e1 A double incline is setup with two ramps as shown. The left block has a mass m1, and the right block has a mass m2. The left ramp is rough with kinetic friction coefficient uy and an angle 01. The ramp on the right is frictionless with an angle 02. The pulley is massless and frictionless. Assume the system starts accelerating to the right on initial release. a) In the Space below draw a set of free body diagrams (or a single one if taking that method which is fine) to fully describe all forces in this problem. b) Find an equation for the acceleration of the system.