Asked by kelsey
In a football game, a tackle running at a constant speed of 5 m/s tackles a stationary receiver. The two fly off horizontally at 4 m/s, before they hit the ground and begin to slow down. If the mass of the tackle is 120 kg,
a.) What is the mass of the receiver?
b.) Calculate the kinetic energy of the tackle-receiver system before and after the collision.
KEsys, i = J
KEsys, f = J
a.) What is the mass of the receiver?
b.) Calculate the kinetic energy of the tackle-receiver system before and after the collision.
KEsys, i = J
KEsys, f = J
Answers
Answered by
bobpursley
Momentum is conserved.
Momentum before = MassTackle*5
momentum after =(masstackle+massreceiver)4
set them equal, you know themass of the tackle, solve for massreceiver.
Momentum before = MassTackle*5
momentum after =(masstackle+massreceiver)4
set them equal, you know themass of the tackle, solve for massreceiver.
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