Questions
A 30 kg box has to move up an inclined plane of slope 30° to the horizontal with a uniform velocity of 5 ms-1.If the frictional force retarding the motion is 150N, the horizontal force required to move the box up is(g=10ms-2)
detailed solution
Correct option is A
Fcosθ=mgsinθ+f,f=μsNTalk to our academic expert!
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A body of mass 5 X 10-3 kg is launched upon a rough inclined plane making an angle of 30° with the horizontal. Obtain the coefficient of friction between the body and the plane, if the time of ascent is half of the time of descent.
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