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A 20 N horizontal force F→ pushes a block weighing 3.0 N against a vertical wall. The coefficient of static friction between the wall and the block is 0.57, and the coefficient of kinetic friction is 0.37. Assume that the block is not moving initially. (a) Will the block move? Yes No (b) In unit-vector notation, what is the force exerted on the block by the wall? N

A 20 N horizontal force F→ pushes a block weighing 3.0 N against a vertical wall. The coefficient of static friction between the wall and the block is 0.57, and the coefficient of kinetic friction is 0.37. Assume that the block is not moving initially. (a) Will the block move? Yes No (b) In unit-vector notation, what is the force exerted on the block by the wall? N

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A 20 N horizontal force F → pushes a block weighing 3.0 N against a vertical wall. The coefficient of static friction between the wall and the block is 0.57 , and the coefficient of kinetic friction is 0.37 . Assume that the block is not moving initially. (a) Will the block move? Yes No (b) In unit-vector notation, what is the force exerted on the block by the wall? ◻ N

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