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 4.5m/s, grabs him. The tackler holds onto the receiver, and and the two move off together with a velocity of 2.6m/s. The mass of the tackler is 115kg. Assuming that momentum is conserved, find the mass of the receiver.

Answer 1

conservation of momentum applies

Momentum tackler= momentumbothafter
115*4.5=(115+M)2.6

Answer 2

65

Answer 3

84.04kg