In a football game, a receiver is standing still, having just caught a pass. Before he can
inge
move, a tackler, running at a velocity of +4.5 m/s, grabs him. The tackler holds onto the
receiver, and the two move off together with a velocity of +2.6 m/s. The mass of the
tackler is 115 kg. Assuming that momentum is conserved, find the mass of the receiver.
