The velocity of each ball after collision.
Answer to Problem 29PP
Final velocity of the stationary ball is
Final velocity of the moving ball is
Explanation of Solution
Given:
Let
Both the balls are identical and their mass is
Since the ball
Initial velocity of the ball
After the collision the ball
This can be diagrammatically represented as shown in the figure
Figure 1.
Formula used:
Since the momentum is conserved, initial momentum of the system is equal to the final momentum of the system. That is,
In this problem,
Therefore,
From the vector diagram, the equation for final momentum of the ball
And, the equation for final momentum of the ball
But the momentum
Applying this relation, equations
And,
Where,
Calculation:
Final velocity of the ball
Final velocity of the ball
Conclusion:
Final velocity of the stationary ball is
Final velocity of the moving ball is
Chapter 9 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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