Question

A boy hits a baseball with a bat and imparts an impulse $J$ to the ball. The boy hits the ball again with the same force, except that the ball and the bat are in contact for twice the amount of time as in the first hit. The new impulse equals:

• A. half the original impulse
• B. the original impulse
• C. twice the original impulse
• D. four times the original impulse

Answer 1

Answer: (C)

twice the original impulse

Impulse is defined as Force times the duration for which it was applied.
In the above case as we are applying the same force but for double time duration the impulse too will be double.