Question

An 85 kg fullback moving east with a speed of 6.0 m/s is tackled by a...

An 85 kg fullback moving east with a speed of 6.0 m/s is tackled by a 96 kg opponent running north at 2.0 m/s. If the collision is perfectly inelastic, calculate each of the following.

(a) the velocity of the players just after the tackle

(b) the kinetic energy lost as a result of the collision

Can you account for the missing energy?

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Answer #1

The loss in KE will be transferred to other forms such as heat and friction.

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