Physics Laboratory Manual
4th Edition
ISBN: 9781133950639
Author: David Loyd
Publisher: Cengage Learning
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Chapter 14A, Problem 8PLA
To determine
The velocity of the cart before the collision and the velocity of the cart after the collision. And the momentum of the cart before the collision and the momentum of the cart after the collision.
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Use the worked example above to help you solve this problem. Two billiard balls of identical mass move toward each other as shown in the figure. Assume that the collision between them is perfectly elastic. If the initial velocities of the balls are v1i = +25.2 cm/s and v2i = −20.3 cm/s, what are the velocities of the balls after the collision? Assume friction and rotation are unimportant. (Indicate the direction with the sign of your answer.)
v1f =
v2f =
Before a collision, Cart A has 50 kg m/s of momentum and Cart B has -10 kg m/s momentum.
Following the collision, Cart A has momentum of 30 kg m/s, Cart B is moving but you don’t know its momentum yet.
What is the total momentum of the 2 car system before the explosion? Show your work.
Assuming this system is isolated, what is the total momentum of the 2 car system after the explosion?
What is the momentum of cart B after the explosion?
If Cart B has a mass of 5 kg, how fast is cart B moving?
A 6.0-kg object, initially at rest in free space, "explodes" into three segments of equal mass. Two of these segments are observed to be moving with equal speeds of 20 m/s with an angle of 60° between their directions of motion. How much kinetic energy is released in this explosion? Show your work
Chapter 14A Solutions
Physics Laboratory Manual
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