A 2,700-kg truck runs into the rear of a 1,000-kg car that was stationary. The truck and car are locked together after the collision and move with speed 3 m/s. Compute how much kinetic energy was "lost" in this inelastic collision.
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Expert's answer
2020-03-03T09:59:03-0500
From the conservation of momentum:
"Mv=(m+M)u\\to 2700v=(1000+2700)3"
"v=4.11\\frac{m}{s}"
Kinetic energy was "lost" in this inelastic collision:
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