An accident occurs when car a rear-ends car b at a


An accident occurs when car A rear-ends car B at a stoplight. The mass of car A is 1500kg and the mass of car B is 1000 kg. Car B was initially at rest with the brakes locked. Skid marks indicate car B slid 12 m after the impact. Assuming that the coefficient of kinetic friction the tires and road is 0.9 and the coefficient of restitution of the impact is 0.6, calculate the velocity of A just before impact.

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Mechanical Engineering: An accident occurs when car a rear-ends car b at a
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