conservation of momentum
125*4.9= (125+M)3.4
solve for M
In a football game, a receiver is standing still, having just caught a pass. Before he can move, a tackler, running at a velocity of +4.9 m/s, grabs him. The tackler holds onto the receiver, and the two move off together with a velocity of +3.4 m/s. The mass of the tackler is 125 kg. Assuming that momentum is conserved, find the mass of the receiver.
2 answers
m= 55.14 kg