Solution: Determine the force parallel to the incline that must be applied

A 40 kg block is resting on an inclined plane making an angle of 20° from the horizontal. If the coefficient of friction is 0.60, determine the force parallel to the incline that must be applied to cause impending motion down the plane.

Determine the force parallel to the incline that must be applied to cause impending motion

Problem Statement: CE Board November 1996

A 40 kg block is resting on an inclined plane making an angle of 20° from the horizontal. If the coefficient of friction is 0.60, determine the force parallel to the incline that must be applied to cause impending motion down the plane.

A. 82 N

B. 77 N

C. 87 N

D. 72 N

Problem Answer:

The force parallel to the incline that must be applied to cause impending motion down the plane is 87 Newtons.

Solution:

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