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A box full of books rests on a wooden floor. The normal force the floor exerts on the box is 234.0 N. (a) You push horizontally on the box with a force of 123.0 N, but it refuses to budge. What can you say about the coefficient of static friction between the box and the floor?

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krlosdark12

Answer:

µ>=0.526.

Explanation:

The friction force is opposite to the horizontal force applied and is given by:

[tex]F_k=\µ*Fn[/tex]

The force applied horizontally need to be bigger so the box can be moved, but in this case, the force friction is bigger so:

[tex]F<=\µF_k\\\µ>=\frac{F}{F_k}\\\\\µ=\frac{123.0}{234.0}\\\\\µ>=0.526[/tex]

So the coefficient of static friction is bigger or equal to 0.526.

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