part A: If the coefficient of static friction between the board and the wall is

Question

part A: If the coefficient of static friction between the board and the wall is 0.71, what is the least force you can apply and still hold the board in place? part B: What happens to the force of static friction if you push against the wall with a force greater than that found in part A?
The force of static friction will increase.
The force of static friction will decrease.
The force of static friction will be the same.
The force of static friction will increase.
The force of static friction will decrease.
The force of static friction will be the same.

Explanation / Answer

part A: find F = 0.71, fs < N, and fs = W, F = N W < F F > W/ so the least force F = W/ = 26.2 N

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