A 100 kg football linebacker moving at 2 m/s tackles head-on an 80 kg halfback running 3 m/s Assume the two players were initially running directly at one another. Neglecting the effects due to digging in of cleats.
a) the halfback will drive the linebacker backward.
b) this is a simple example of an elastic collision.
c) neither player will drive the other backward.
d) the linebacker will drive the halfback backward.