A 20 Kg Softball Is Pitched to You at 20

Multiple Choice

A 2.0 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 0.10 s, the average force the bat exerted was

A) 0.40 kN.
B) zero.
C) 40. N.
D) 0.65 kN.
E) 0.80 kN.