A 100 Kg Football Linebacker Moving at 2 M/s Tackles

Multiple Choice

A 100 kg football linebacker moving at 2 m/s tackles head-on an 80 kg halfback running 3 m/s. Neglecting the effects due to digging in of cleats

A) the linebacker will drive the halfback backward.
B) the halfback will drive the linebacker backward.
C) neither player will drive the other backward.
D) this is a simple example of an elastic collision.