An 83 kg fullback moving east with a speed of 54 ms is, Ask an Expert

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An 83 kg fullback moving east with a speed of 5.4 m/s is tackled by a 96 kg opponent running west at 3.8 m/s, and the collision is perfectly inelastic.

a) What is the velocity of the players immediately after the tackle?

b) What is the decrease in kinetic energy during the collision?

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