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During a football game, a receiver has just caught a pass and is standing still. Before he can move, a tackler, running at a velocity of +4.2 m/s, grabs and holds onto him so that they move off together with a velocity of +2.3 m/s. If the mass of the tackler is 125 kg, determine the mass of the receiver in kilograms. Assume momentum is conserved.

Respuesta :

Answer:103.261kg

Explanation:

Assume m to be mass of the receiver

Momentum before =(125*4.2)-m*0

Momentum after =2.3(125+m)

525=287.5+2.3m

m=237.5/3.3

m=103.261kg

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