Velocity of concrete ball.
Answer to Problem 68A
Explanation of Solution
Given:
Mass of the rubber bullet,
Velocity of rubber bullet before collision,
Mass of the concrete block,
Velocity of rubber bullet after collision,
Formula used:
Momentum of any object is given by,
Here, P is momentum, m is mass and v is velocity
If no external force is applied on the object,then momentum is conserved.
Calculation:
As the concrete block is stationary before the collision, therefore, velocity of concrete block before the collision,
According to conservation of momentum, initial momentum will be equal to final momentum.
Therefore,
Now, substitute the values of
Conclusion:
Therefore, velocity of concrete ball will be 0.367 m/s after the collision.
Chapter 9 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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