
(a)
To sketch: The given system, showing the velocities and momenta before and after the collision.
(a)

Answer to Problem 94A
Explanation of Solution
Given:
Mass of ball A =
Mass of ball B =
Before collision:
Velocity of ball A (
Velocity of ball B (
After collision:
Velocity of ball A (
Formula used:
Momentum of a body:
Where
Calculation:
As per problem:
Before collision
After collision
The momentum of the balls is calculated by the formula
The momentum of the ball A
Before collision,
After collision,
The momentum of ball B
Before collision,
Sketch the system with the given data
The ball B moves at an angle
(b)
To calculate: The velocity and momentum of ball B.
(b)

Answer to Problem 94A
The momentum of ball B is
Explanation of Solution
Given:
Mass of ball A =
Mass of ball B =
Before collision:
Velocity of ball A (
Momentum of ball A
Velocity of ball B (
Momentum of ball B
After collision:
Velocity of ball A (
Momentum of ball A
Formula used:
Conservation of momentum:
Where
Calculation:
As per problem,
To calculate horizontal momentum of ball B after collision rearrange the formula and substitute the values
To calculate horizontal momentum of ball B after collision rearrange the formula and substitute the values
The vector sum of momentum ball B
Therefore, momentum of ball B is
The velocity of ball B
Conclusion:
The momentum of ball B is
Chapter 15 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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