Discover new knowledge and insights with IDNLearn.com's extensive Q&A platform. Join our interactive Q&A community and access a wealth of reliable answers to your most pressing questions.

a receiver in a football game is standing still, having just caught a pass. before he can move, a tackler, running at a velocity of 4.4 m/s, grabs him. the tackler holds onto the receiver, and the two move off together with a velocity of 3 m/s. the mass of the tackler is 120 kg. assuming that momentum is conserved, find the mass of the receiver.