A ball of mass m strikes a bat with velocity v. If it retraces its path with the same speed, what is the impulse imparted by the bat ?

A ball of mass m strikes a bat with velocity v. If it retraces its pat

1.	A ball of mass m strikes a bat with velocity v. If it retraces its path with the same speed, what is the impulse imparted by the bat ?
Answer» zero 2 mv mv 3 mv Answer :B