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March 30, 2015

Homework Help: physics 3!!**

Posted by kelsey on Sunday, October 12, 2008 at 2:02am.

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

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