A  13 kg box must be slid across the floor. If the coefficient of static friction between the box and floor is 0.37, what is the minimum force needed to start the box moving from rest? A) 47 N B)127 N C) 33 N D) 66 N

Expert Answers

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The minimum force is the force that exceeds the friction force.

When the force exceeds friction force the box will start to slide.

`F = muR`

Friction force`(F) = 0.37*13*9.81 N = 47.2 N`

 

So the answer is A).

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