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Laws Of Motion

Question

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The figure shows a horizontal force F acting on a block of mass M on an inclined plane (angle θ). What is the normal reaction N on the block?

mg sinθ + F cosθ

mg sinθ $-$ Fcosθ

mg cosθ $-$ F sinθ

mg cosθ + F sinθ

Solution

D.

mg cosθ + F sinθ

From the figure, the normal reaction on the block is

N = mg cosθ + F sinθ

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