1) A 83.0 kg fullback is running at 3.86 m/s to the east and is stopped in 0.760 s by a head-on tackle by a tackler running due west.
a) Calculate the original momentum of the fullback.
b) Calculate the impulse exerted on the fullback.
c) Calculate the impulse exerted on the tackler.
d) Calculate the average force exerted on the tackler.
2) A 0.420 kg ice puck, moving east with a speed of 3.12 m/s, has a head-on collision with a 0.890 kg puck initially at rest. Assuming a perfectly elastic collision, what is the speed of the lighter puck? Use east as the positive axis.
What is the speed of the heavier puck?