Asked by JAC OB254
A body of weight 500N rests on a plane inclined at 20 degrees to the horizontal. The coefficient of friction is 0.4, determine a force F at an angle of 15 degrees to the plane required to
(a) pull the body upwards
(b) push the body downwards
(c) pull the body downwards
(d) push the body upwards
(a) pull the body upwards
(b) push the body downwards
(c) pull the body downwards
(d) push the body upwards
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