Asked by Agam
a bkock placed on a rough inclined plane of length 4m just begins to slide down when the upper end of the plane is 1m high from the ground.calculate the coefficient of static friction.
Answers
Answered by
bobpursley
the angle of the board is arcsin(.25)
mu=tangent(arcsin(.25))
force down the plane=mgSinTheta
force normal: mgCosTheta
friction up plane: mg*mu*cosTheta
movement occurs when force down >friction or
mgSinTheta=>mg*mu*CosTheta or
mu=TanTheta
mu=tangent(arcsin(.25))
force down the plane=mgSinTheta
force normal: mgCosTheta
friction up plane: mg*mu*cosTheta
movement occurs when force down >friction or
mgSinTheta=>mg*mu*CosTheta or
mu=TanTheta
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