# 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.

#### 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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