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Q1. Speedboat A negotiates a curve whose radius is 114 m. Speedboat B negotiates a curve whose radius is 183 m. Each boat experiences the identical centripetal acceleration. What is the ratio vA/vB of the speeds of the boats?

Q2. Travelling at a speed of 17.10 m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of kinetic friction between the tires and the road is 0.740. What is the speed of the automobile after 1.81 s have elapsed? Overlook the effects of air resistance.

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