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An 70 kg running back has a football and is making a break for a touchdown...

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Physics

An 70 kg running back has a football and is making a break for atouchdown at 9 m/s. On his way, a 126 kg linebacker running in theopposite direction at 4 m/s collides with him for the tackle. Howmuch kinetic energy is lost in this collision?

Round intermediate answers to four significant figures and finalanswers to three significant figures for best accuracy.

Answer & Explanation Solved by verified expert
3.7 Ratings (556 Votes)
This is the case of one dimensional inelastic collision So after the collision both the players will be moving with the same velocity Let M1 be the mass of the first player and V1i be the initial velocity of the first player Similarly M2 be the mass of the second player and V2i be the initial velocity of    See Answer
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