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A 3.0 kg cube is placed on a rough plane. The plane is then slowly tilted until the cube starts to move from rest. This occurred when angle of inclination is 25 degrees. Calculate the frictional force?
Wiki User
∙ 11y ago
In general if an object of mass M is placed on a plane inclined at an angle @, then Mg cos@ will be the reaction R and Mgsin@ will be the pulling force acting along the plane.
As it just starts moving at 25 deg, then the frictional force will be 3*9.8*sin25
ie 12.43 N
Wiki User
∙ 11y ago
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