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Question

A block of mass m is pushed by applying a force F at an angle θ with the horizontal surface. The normal force on the block is given as -


A

F = mg - F sin θ

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B

F = mg

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C

F = F sin θ

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D

F = mg + F sin θ

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Solution

The correct option is D

F = mg + F sin θ


From the figure,

Reaction force is the sum of weight of the body and vertical component of the applied force pointed upward.

F = mg + F sin θ


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