What is the speed of the automobile after 1.22 s have elapsed?


Posted March 24th, 2010 by admin 1 Comment »
automobile
Mariah asked:


Traveling at a speed of 13.3 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 0.650. What is the speed of the automobile after 1.22 s have elapsed? Ignore the effects of air resistance.

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Posted in Physics | 1 Comment »

What is the deceleration of a car on a flat street if the driver brakes sharply?


Posted November 1st, 2009 by admin 1 Comment »
car
Fggfg asked:


Suppose that the coefficient of kinetic friction of the rubber of a car tire and the street is = 0.8 k μ . What is the deceleration of a car on a flat street if the driver brakes sharply, so all the wheels are locked and skidding?

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Posted in Mathematics | 1 Comment »