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September 17, 2014

Homework Help: Physics

Posted by Kevin on Saturday, February 6, 2010 at 4:45pm.

A 90 kg halfback runs north and is tackled by a 120 kg opponent running south at 4 m/s. The collision is perfectly inelastic. Just after the tackle, both players move at a velocity of 2 m/s north. Calculate the velocity of the 90 kg player just before the tackle.

a.) 3 m/s south
b.) 4 m/s south
c.) 10 m/s north
d.) 12 m/s north

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