when impulse is asked when should we use (mv-mu)and when should we use (mu-mv)please give me the answer

Asked by  | 15th Aug, 2012, 07:20: PM

Expert Answer:

This answer depends on the frame of reference in consideration.
Eg. suppose we are required to find the impulse tranferred on a bat by a ball, so there we will use:
where as the impuse on  the ball by bat wil be mu-mv
as in this case the force is transmitted to the bat by ball in the direction of initial velocity of ball.

Answered by  | 17th Aug, 2012, 01:14: PM

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