A 12 kg block of steel is at rest on ahorizontal table. The coefficient of stati

Question

A 12 kg block of steel is at rest on ahorizontal table. The coefficient of static friction between blockand table is 0.60. (a) What is the magnitude of the horizontalforce that will put the block on the verge of moving?
1 N

(b) What is the magnitude of a force acting upward 60° from thehorizontal that will put the block on the verge of moving?
2 N

(c) If the force acts down at 60° from the horizontal, howlarge can its magnitude be without causing the block to move?
3 N (a) What is the magnitude of the horizontalforce that will put the block on the verge of moving?
1 N

(b) What is the magnitude of a force acting upward 60° from thehorizontal that will put the block on the verge of moving?
2 N

(c) If the force acts down at 60° from the horizontal, howlarge can its magnitude be without causing the block to move?
3 N

Explanation / Answer

Mass m = 12 kg

Coeeficient of static friction = 0.6

(a). magnitude of horizontal force F = mg

                                                    = 70.56 N

(b). Angle = 60 degrees

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