To measure the static friction coefficient between a 2.59-kg block and a vertica

Question

To measure the static friction coefficient between a 2.59-kg block and a vertical wall, the setup shown in the drawing is used. A spring (spring constant = 550 N/m) is attached to the block. Someone pushes on the end of the spring in a direction perpendicular to the wall until the block does not slip downward. If the spring in such a setup is compressed by 0.0625 m, what is the coefficient of static friction?

Explanation / Answer

coefficient of static friction* K*x = mg => coefficient of static friction = 2.59*9.8/ 550*0.0625 => coefficient of static friction= 0.738

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