Conceptual Physical Science (6th Edition)
6th Edition
ISBN: 9780134060491
Author: Paul G. Hewitt, John A. Suchocki, Leslie A. Hewitt
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 2, Problem 38PAC
A simple rearrangement of Newton's second law gives Fnet = ma. Show that a net force of 84 N exerted on a 12-kg package is needed to produce an acceleration of 7.0 m/s2. (Note: The units kg-m/s2 and N are equivalent.)
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Two forces act on a 3.40 kg object, the gravitational force and a second, constant force. The object starts from rest and in 1.20 s
is displaced (5.701 - 3.30ĵ) m. Write the second force in unit vector notation. (Enter your answer in kg. m/s². Assume the
gravitational force acts in the -ĵ direction.)
F = 13.2
X
Two forces act on a 3.25 kg object, the gravitational force and a second, constant force. The object starts from rest and in
1.20 s is displaced (5.60î – 3.30j) m. Write the second force in unit vector notation. (Enter your answer in kg · m/s2.
Assume the gravitational force acts in the -j direction.)
kg - m/s?
F =
A 1,900 kg car is slowed down on the high way from 50 m/s to 36 m/s over a
distance of 50 m (did the driver spot a patrol car?). How many Newtons of frictional
force was responsible for the deceleration?
Answer in absolute value.
Chapter 2 Solutions
Conceptual Physical Science (6th Edition)
Ch. 2 - State the law of inertia.Ch. 2 - Is inertia a property of matter or a force of some...Ch. 2 - What concept was missing from people's minds in...Ch. 2 - When a bird lets go of a branch and drops to the...Ch. 2 - What kind of path would the planets follow if...Ch. 2 - State Newton's second law.Ch. 2 - Is acceleration directly or inversely proportional...Ch. 2 - Is acceleration directly or inversely proportional...Ch. 2 - If the mass of a sliding block is tripled at the...Ch. 2 - What is the net force that acts on a 10-N freely...
Ch. 2 - Why doesnt a heavy object accelerate more than a...Ch. 2 - What is the net force that acts on a 10-N falling...Ch. 2 - What two principal factors affect the force of air...Ch. 2 - What is the acceleration of a falling object that...Ch. 2 - If two objects of the same size fall through air...Ch. 2 - Why does a heavy parachutist fall faster than a...Ch. 2 - Earlier in this chapter, we treated force as a...Ch. 2 - How many forces are required for a single...Ch. 2 - When you push against a wall with your fingers,...Ch. 2 - A boxer can hit a heavy bag with great force. Why...Ch. 2 - State Newtons third law.Ch. 2 - Consider hitting a baseball with a bat. If we call...Ch. 2 - If the force that acts on a cannonball and the...Ch. 2 - Is it correct to say that action and reaction...Ch. 2 - If body A and body B are both within a system, can...Ch. 2 - In terms of forces, what is necessary to...Ch. 2 - Identify the force that propels a rocket into...Ch. 2 - How does a helicopter get its lifting force?Ch. 2 - To what law of physics do we refer when we say you...Ch. 2 - Which of Newtons laws focuses on inertia? Which on...Ch. 2 - In Chapter 1 acceleration is defined as a = vt....Ch. 2 - In this chapter we learn that the cause of...Ch. 2 - Knowing that a 1-kg object weighs 10 N. confirm...Ch. 2 - A simple rearrangement of Newton's second law...Ch. 2 - A Honda Civic hybrid weighs about 2900 pounds,...Ch. 2 - When two horizontal forces are exerted on the car...Ch. 2 - A 12-kg astronaut recedes from her spacecraft by...Ch. 2 - Madison pushes with a 160-N horizontal force on a...Ch. 2 - Sophia pushes with a 40-N horizontal force on a...Ch. 2 - A business jet of mass 30,000 kg takes off when...Ch. 2 - A rocket of mass 100,000 kg undergoes an...Ch. 2 - Calculate the horizontal force that must be...Ch. 2 - Leroy, who has a mass of 100 kg, is skateboarding...Ch. 2 - For 3.0 s, Allison exerts a net force of 10.0 N on...Ch. 2 - The heavyweight boxing champion of the world...Ch. 2 - Suzie Skydiver with her parachute has a mass of 50...Ch. 2 - If you stand next to a wall on a frictionless...Ch. 2 - A force Facts in the forward direction on a cart...Ch. 2 - A firefighter of mass 80 leg slides down a...Ch. 2 - A rock bands tour bus, mass M, is accelerating...Ch. 2 - Boxes of various masses are on a friction-free...Ch. 2 - In cases A, B, and C, the crate is in equilibrium...Ch. 2 - Consider a 100-kg box of tools in the locations A,...Ch. 2 - Three parachutists, A, B, and C, have reached...Ch. 2 - The strong man is pulled in the three situations...Ch. 2 - The Moon travels in a nearly circular path around...Ch. 2 - To pull a wagon across a lawn at constant...Ch. 2 - Your empty hand is not hurt when it bangs lightly...Ch. 2 - Why is a massive cleaver more effective for...Ch. 2 - Aristotle claimed that the speed of a falling...Ch. 2 - What is the net force acting on a 1-kg ball in...Ch. 2 - As you leap upward from the ground, how does the...Ch. 2 - "It's not the fall that hurts you; it's the sudden...Ch. 2 - For each of the following interactions, identify...Ch. 2 - You hold an apple over your head. (a) Identify all...Ch. 2 - What is the net force on an apple that weighs 1 N...Ch. 2 - Why does a cat that falls from the top of a...Ch. 2 - Free fall is motion in which gravity is the only...Ch. 2 - How does the weight of a falling body compare with...Ch. 2 - You tell your friend that the acceleration of a...Ch. 2 - We know that Earth pulls on the Moon. Does it...Ch. 2 - A friend says that Al cannot push on the tree...Ch. 2 - Why can a boxer hit a heavy opponent harder for...Ch. 2 - When you stand on a floor, does the floor exert an...Ch. 2 - Why can you exert greater force on the pedals of a...Ch. 2 - The strong man will push apart the two initially...Ch. 2 - Suppose two carts, one twice as massive as the...Ch. 2 - Two 100-N weights are attached to a spring scale...Ch. 2 - Prob. 83ECh. 2 - When the athlete holds the barbell overhead, the...Ch. 2 - Consider the two forces acting on the person who...Ch. 2 - If a Mack truck and a motorcycle have a head-on...Ch. 2 - Two people of equal mass attempt a tug-of-war with...Ch. 2 - Suppose that one of the people in Exercise 87 has...Ch. 2 - Which team wins in a tug-of-war: the team that...Ch. 2 - The photo shows Steve Hewitt and his daughter...Ch. 2 - When your car moves along the highway at constant...Ch. 2 - The auto in the sketch moves forward as the brakes...Ch. 2 - A racing car travels along a straight raceway at a...Ch. 2 - If it were not for air resistance, would it be...Ch. 2 - When you toss a coin upward, what happens to its...Ch. 2 - Discuss whether or not a stick of dynamite...Ch. 2 - In an orbiting space craft, you are handed two...Ch. 2 - Each of the vertebrae forming your spine is...Ch. 2 - Before the time of Galileo and Newton, many...Ch. 2 - The opening photo in this chapter shows a favorite...Ch. 2 - Consider a ball at rest in the middle of a toy...Ch. 2 - If youre in a car at rest that gets hit from...Ch. 2 - Why do you lurch forward in a bus that suddenly...Ch. 2 - Suppose that youre in a moving car and the engine...Ch. 2 - A rocket becomes progressively easier to...Ch. 2 - If you drop an object, its acceleration toward the...Ch. 2 - Can you think of a reason why the acceleration of...Ch. 2 - You throw a ball straight upward. Compared with...Ch. 2 - A couple of your friends say that before a falling...Ch. 2 - How does the terminal speed of a parachutist...Ch. 2 - How does the gravitational force on a falling body...Ch. 2 - If and when Galileo dropped two balls from the top...Ch. 2 - This is a scenario common to many physics...Ch. 2 - A fanner urges his horse to pull a wagon. The...Ch. 2 - When Marie exerts a horizontal force of 200 N to...Ch. 2 - Two equal-mass blocks are connected by a length of...Ch. 2 - The bricks in this road were originally straight....Ch. 2 - Ken and Joanne are astronauts floating some...Ch. 2 - Can a clog wag its tail without the tail in turn...Ch. 2 - If you simultaneously drop a pair of tennis balls...Ch. 2 - If gravity between the Sun and Earth suddenly...Ch. 2 - A ball rolls down a curved ramp as shown. As its...Ch. 2 - A block of ice sliding without friction down an...Ch. 2 - The reason why a 10-kg rocks falls no faster than...Ch. 2 - As mass is added to a cart pushed by a constant...Ch. 2 - The amount of air resistance that acts on a...Ch. 2 - You drop a pillow off the edge of the...Ch. 2 - Alex pulls on the end of a spring attached to a...Ch. 2 - The amount of force with which a boxers punch...Ch. 2 - The force that propels a rocket is provided by (a)...
Additional Science Textbook Solutions
Find more solutions based on key concepts
If a gas at 0C is cooled to 100C, by how much would its pressure decrease?
Conceptual Integrated Science
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective (8th Edition)
26.17 In the circuit shown in Fig. E26.17, the voltage across the 2.00-? resistor is 12.0 V. What are the emf o...
University Physics with Modern Physics (14th Edition)
4. (II) A 1200-N crate rests on the floor. How much work is required to move it at constant speed (a) 5.0 m alo...
Physics: Principles with Applications
Propose a force standard different from the example of a stretched spring discussed in the text. Your standard ...
College Physics
Express the unit vectors in terms of (that is, derive Eq. 1.64). Check your answers several ways Also work o...
Introduction to Electrodynamics
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
- Is it possible to add a scalar quantity to a vector quantity?arrow_forwardA child riding a bicycle has a total mass of 30.6 kg. The child approaches the top of a hill that is 27.9 m high 27.9 and is 86.8 m (ℓ) long at 12.1 m/s. If the force of friction between the bicycle and the hill is 26.7 N, what is the child's velocity at the bottom of the hill? (Disregard air resistance, g = 9.8 m/s2.)arrow_forwardOn a spending spree in Malaysia, you buy an ox with a weight of 28.9 piculs in the local unit of weights: 1 picul = 100 gins, 1 gin = 16 tahils, 1 tahil = 10 chees, and 1 chee =10 hoons. The weight of 1 hoon corresponds to a mass of 0.3779 g. When you arrange to ship the ox home to your astonished family, how much mass in kilograms must you declare on the shipping manifest? (Hint: Set up multiple chain-link conversions.)arrow_forward
- A force is acting on a block with a magnitude of F = 115 N. The force makes an angle of 0 = 14° with respect to the horizontal, as shown in the figure. Randomized Variables F = 115 N 0 = 14° m 0 If the block has a mass of m = 5 kg and the coefficient of friction between the floor and block is uk = 0.5, what is the block's acceleration, in meters per square second?arrow_forwardA variable force F(x)=Ax2-Bx acts on an object. The units of F(x) are N and the values of A and B are A=6.09 and B=3.18 when x is in meters. The units of A and B are?arrow_forwardTwo forces act on a 4.25 kg object, the gravitational force and a second, constant force. The object starts from rest and in 1.20 s is displaced (4.40î − 3.30ĵ) m. Write the second force in unit vector notation. (Enter your answer in kg · m/s2. Assume the gravitational force acts in the −ĵ direction.)arrow_forward
- You purchased 5.8 kg of apples from Wollaston. You noticed that they used a spring scale with the smallest division of 8.6 g to weigh them. What is the relative error in this weight measurement as a percentage?[For example, if you find it to be 1.2% you should enter 1.2 in the answer box.]arrow_forwardPlease answer it within 30 minutes.I will upvote!arrow_forwardTwo forces act on a 3.20 kg object, the gravitational force and a second, constant force. The object starts from rest and in 1.20 s is displaced (4.35î − 3.30ĵ) m. Write the second force in unit vector notation. (Enter your answer in kg · m/s2. Assume the gravitational force acts in the −ĵ direction.) F =arrow_forward
- 2.6. A car of mass 750 kg is accelerated from rest by a constant force of 500 N for a distance of 200 m. Calculate the maximum speed reached and the brake force required to stop the car in a distance of 20 m.arrow_forwardThe force acting on an object is given by F, = (6x – 10) N, where x is in meters. (a) Choose the plot that best describes the force versus x from x = 0 to x = 3.00 m. Fx (N) Fx (N) 20 20 10 10 х (m) 3.0 х (m) 0.5 10 1.5 2.0 2.5 3.0 0.5 1.0 1.5 2.0 2.5 - 10- - 10 - 20 - 20 Fx (N) Fx (N) 20 20 10 10 х (m) 3.0 х (m) 3.0 0.5 1.0 1.5 2.0 2.5 0.5 1.0 1.5 2.5 - 10 - 10 - 20 - 20 (b) Estimate F (0). N Estimate F(3.0 m). N Estimate the x intercept. From your graph, find the net work done by the force as the object moves from x = 0 to x = 3 m. (Use your estimates.) Need Help? Read It Watch Itarrow_forwardThe forces acting on the sailplane are its weight W = -500j (lb.) , the drag D = -200i + 100j (lb.), and the lift L. The sum of the forces W + L + D = 0. Determine the composnents and the magnitude of L.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
General Relativity: The Curvature of Spacetime; Author: Professor Dave Explains;https://www.youtube.com/watch?v=R7V3koyL7Mc;License: Standard YouTube License, CC-BY