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In the "before" part of the figure, car A (mass 1200 kg) is stopped at a traffic light when it is rear-ended by car B (mass 1200 kg). Both cars then slide with locked wheels until the frictional force from the slick road (with a low μk of 0.16) stops them, at distances dA = 8.0 m and dB = 5.3 m. What are the speeds of (a) car A and (b) car B at the start of the sliding, just after the collision? (c) Assuming that linear momentum is conserved during the collision, find the speed of car B just before the collision.

Before After (a) Number (b) Number (c) Number Units units Units
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Tr. docked heel conclstion, the cons ou uncley und om deced siaton Mm inu, μ and 9 ou both Constanta cm。 h motion gonl b kin

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