A 600-kg car is coasting along a level road at 30 m/s. (a) How large a retarding
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A 600-kg car is coasting along a level road at 30 m/s.
(a) How large a retarding force (assumed constant) is required to stop it in a distance of 70 m?
(b) What is the minimum coefficient of friction between tires and roadway if this is to be possible? Assume the wheels are not locked, in which case we are dealing with static friction—there’s no sliding.
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