The velocity of the puck and the jacket if they slide off together.
Answer to Problem 91A
Explanation of Solution
Given:
The mass of the hockey puck,
The mass of the jacket,
Initial velocity of the puck,
Since the jacket was at rest initially, thus the initial velocity of the jacket,
Formula used:
Momentum of an object of mass m and moving with velocity v is given by,
And, law of conservation of linear momentum: Momentum is conserved in a closed and isolated system and is given by,
Calculation:
Consider the puck and jacket as a system, then it will be a closed and isolated system and law of conservation of momentum can be applied to it.
Let, the final velocity of the puck and jacket be
Using given values in above,
Conclusion:
Thus, the velocity of the puck and the jacket when they slide off together is
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