A golf ball of mass m is hit by a golf club so that the ball leaves the tee with speed v.The club is in contact with the ball for time T.The average force on the club on the ball during the time T is:

Question

Quizplus · Accepted Answer

The average force on the ball can be calculated using Newton's second law, $F = \frac{\Delta p}{\Delta t}$, where $\Delta p$ is the change in momentum and $\Delta t$ is the time interval. Since the initial momentum of the ball is 0 (it starts from rest) and its final momentum is $mv$ (mass times velocity), the change in momentum $\Delta p = mv - 0 = mv$. Therefore, the average force $F = \frac{mv}{T}$.

A Golf Ball of Mass M Is Hit by a Golf