IP A 1200 kg car moving at 2.2 m/s is struck in the rear by a 2900 kg truck movi

Question

IP A 1200 kg car moving at 2.2 m/s is struck in the rear by a 2900 kg truck moving at 6.3 m/s. If the vehicles stick together after the collision, is the final kinetic energy of the car and truck together greater than, less than, or equal to the sum of the initial kinetic energies of the car and truck separately? (Assume that external forces may be ignored.) greater than the sum of the initial kinetic energies of the car and truck less than the sum of the initial kinetic energies of the car and truck equal to the sum of the initial kinetic energies of the car and truck

Explanation / Answer

b

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