Posted by: nepwanted May 29, 2009
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Need to know how to do these questions: Any physics gurus please helps:
A box of canned goods slides down a ramp from street level into the basement of a grocery store with acceleration 0.55 m/s2 directed down the ramp. The ramp makes an angle of 40° with the horizontal. What is the coefficient of kinetic friction between the box and the ramp?
n the figure below, a stuntman drives a car (without negative lift) over the top of a hill, the cross section of which can be approximated by a circle of radius R = 170 m. What is the greatest speed at which he can drive without the car leaving the road at the top of the hill?
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