A 94.0kg fullback moving south with a speed of 5.1m/s has a perfectly inelastic collision with a 90.0kg opponent running north at 3.0m/s.

A. Calculate the velocity of the players just after the tackle.
B. Calculate the decrease in total kinetic energy after the collision.

4 answers

Anybody got an answer?
Can you us tell your answer first? Or, at least what you think?
A. I got -1.1m/s = Vf
B. I am having trouble with.
Can anybody help me?