A $2\mathrm{.}0-$kg softball is pitched to you at $20$ m$/$s$.$ You hit the ball back along the same path, and at the same speed. If the bat was in contact with the ball for $0\mathrm{.}10$ s$,$ what is the magnitude of the average force the bat exerted?

Question $9$Select one:

a$.$

zero

b$.$

$400$ N

c$.$

$40$ N

d$.$

$800$ N