Matter and Interactions
Matter and Interactions
4th Edition
ISBN: 9781118875865
Author: Ruth W. Chabay, Bruce A. Sherwood
Publisher: WILEY
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Chapter 2, Problem 1Q

(a)

To determine

The change that happens to the magnitude of the momentum when the net force acts in the +x direction and F is constant.

(a)

Expert Solution
Check Mark

Answer to Problem 1Q

The magnitude of the momentum will remain same when the net force acts in the +x direction and F is constant .

Explanation of Solution

Write the expression for the force according to Newton’s second law.

    F=dpdt        (I)

Here, F is the force, dpdt is the rate of change in momentum.

Conclusion:

Since the force is constant and acting in the x direction, the magnitude of the momentum remains same whereas the direction will change.

(b)

To determine

The change that happens to the magnitude of the momentum when the net force acts in the +x direction and F is increasing.

(b)

Expert Solution
Check Mark

Answer to Problem 1Q

The magnitude of the momentum will increase since the net force acts in the +x direction and F is increasing.

Explanation of Solution

Write the expression for the force according to Newton’s second law.

    F=dpdt

Since F and p are directly proportional, increase in the magnitude of force will increase the magnitude of momentum.

Conclusion:

Since the magnitude of the momentum will increase since the net force acts in the +x direction and F is increasing.

(c)

To determine

The change that happens to the magnitude of the momentum when the net force acts in the +x direction and F is decreasing

(c)

Expert Solution
Check Mark

Answer to Problem 1Q

The magnitude of the momentum will decrease since the net force acts in the +x direction and F is decreasing

Explanation of Solution

Write the expression for the force according to Newton’s second law.

    F=dpdt

Since F and p are directly proportional, decrease in the magnitude of force will decrease the magnitude of momentum.

Conclusion:

Since the magnitude of the momentum will decrease since the net force acts in the +x direction and F is decreasing.

(d)

To determine

The change that happens to the magnitude of the momentum when the net force acts in the +-x direction and F is constant.

(d)

Expert Solution
Check Mark

Answer to Problem 1Q

The magnitude of the momentum will remain same since the net force acts in the -x direction and F is constant

Explanation of Solution

Since the net force is in the negative x direction, the initial and final momentum will be acting in the same direction and since the force is constant the magnitude will be same only.

Conclusion:

Since The magnitude of the momentum will remain same since the net force acts in the -x direction and F is constant

(e)

To determine

The change that happens to the magnitude of the momentum when the net force acts in the -x direction and F is increasing.

(e)

Expert Solution
Check Mark

Answer to Problem 1Q

The magnitude of the momentum will remain decrease since the net force acts in the -x direction and F is increasing.

Explanation of Solution

Since the net force is in the negative x direction, the initial and final momentum will be acting in the same direction and as the force is increasing the magnitude of momentum will decrease.

Conclusion:

Since the magnitude of the momentum will remain decrease since the net force acts in the -x direction and F is increasing.

(f)

To determine

The change that happens to the magnitude of the momentum when the net force acts in the -x direction and F is decreasing

(f)

Expert Solution
Check Mark

Answer to Problem 1Q

The magnitude of the momentum will remain decrease since the net force acts in the -x direction and F is decreasing.

Explanation of Solution

Since the net force is in the negative x direction, the initial and final momentum will be acting in the same direction and as the force is decreasing the magnitude of momentum will increase.

Conclusion:

Since the magnitude of the momentum will remain decrease since the net force acts in the -x direction and F is decreasing.

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Chapter 2 Solutions

Matter and Interactions

Ch. 2 - Prob. 1QCh. 2 - An object is moving in the +y direction. Which, if...Ch. 2 - You observe three carts moving to the left. Cart A...Ch. 2 - In order to pull a sled across a level field at...Ch. 2 - Prob. 5QCh. 2 - A comet passes near the Sun. When the comet is...Ch. 2 - A ball moves in the direction of the arrow labeled...Ch. 2 - A system is acted upon by two forces, 〈18, 47,...Ch. 2 - A truck driver slams on the brakes and the...Ch. 2 - At a certain instant a particle is moving in the...Ch. 2 - At t = 16.0 s an object with mass 4 kg was...Ch. 2 - A proton (mass 1.7 × 10−27 kg) interacts...Ch. 2 - A Ping-Pong ball is acted upon by the Earth, air...Ch. 2 - In outer space a rock of mass 5 kg is acted on by...Ch. 2 - A steel safe with mass 2200 kg falls onto...Ch. 2 - In a crash test, a truck with mass 2500 kg...Ch. 2 - A tennis ball has a mass of 0.057 kg. A...Ch. 2 - An object is on a collision course with the Earth...Ch. 2 - Prob. 20PCh. 2 - You throw a metal block of mass 0.25 kg into the...Ch. 2 - A small space probe, of mass 240 kg, is launched...Ch. 2 - A soccer ball of mass 0.43 kg is rolling with...Ch. 2 - As your spaceship coasts toward Mars, you need to...Ch. 2 - A runner starts from rest and in 3 s reaches a...Ch. 2 - The driver of a car traveling at a speed of 18 m/s...Ch. 2 - On a straight road with the +x axis chosen to...Ch. 2 - A ball of mass 0.4 kg flies through the air at low...Ch. 2 - For each graph of vx vs. t numbered 1–6 in Figure...Ch. 2 - A cart rolls with low friction on a track. A fan...Ch. 2 - Consider the three experiments described in...Ch. 2 - Consider the three experiments described in...Ch. 2 - You are a detective investigating why someone was...Ch. 2 - Prob. 34PCh. 2 - A ball is kicked from a location 〈9, 0, −6〉 (on...Ch. 2 - Prob. 37PCh. 2 - Prob. 38PCh. 2 - The performance of two different cars, car 1 and...Ch. 2 - A driver starts from rest on a straight test track...Ch. 2 - The stiffness of a particular spring is 40 N/m....Ch. 2 - A spring with a relaxed length of 25 cm and a...Ch. 2 - Prob. 43PCh. 2 - Prob. 44PCh. 2 - Prob. 46PCh. 2 - Prob. 47P
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