Question

An 80 kg hockey player is skating at 4.1 m/s when an 85 kg hockey player from

another team, moving in the same direction at 5.5 m/s, hits him from behind. The
two becoming tangled up together and continue in a straight line. Find the
velocity of the two hockey players after they become attached.

Answer 1

Answer: 4.821m/s

Step-by-step explanation:

initial momentum = final momentum

(80 x 4.1) + (85 x 5.5) = (80 + 85)u

328 + 467.5 = 165u = 795.5 / 165 = 4.821m/s