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  3. A body of mass 2 kg is kept by pressing to a vertical wall by a force of 100 N. The friction between wall and body is 0.3. Then the frictional force

. A body of mass 2 kg is kept by pressing to a vertical wall by a force of 100 N. The friction between wall and body is 0.3. Then the frictional force

(a) 6 N      

(b) 20 N   

(c) 600 N  

(d) 700 N

Best Answer

For the given condition     Static friction = Applied force  = Weight of body = 2 × 10 = 20 N.

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