Question

Suppose a block is placed on a horizontal wooden board with friction. The board is then slowly tilted, increasing the angle of the board with respect to the ground. Naturally, when the angle gets large enough, the block will begin to slide. But BEFORE that point (i.c., while the block is still at rest on the board), which of the following is true? As the angle increases, the normal force on the block decreases and the force of friction on the block increases As the angle increases, the normal force on the block increases and the force of friction on the block decreases As the angle increases, the normal force on the block decreases and the force of friction on the block also decreases As the angle increases, the normal force on the block increases and the force of friction on the block also increases

Answer 1

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