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Questions  

A block of mass 'm' is placed on a frictionless inclined plane of inclination θ with horizontal. The inclined plane is accelerated horizontally so that the block does not slide down. In this situation, vertical force exerted by the inclined plane on the block is:

a
mg sin θ
b
mg cos θ
c
mg/cos θ
d
none of these

detailed solution

Correct option is C

FBD of m w.r.t. wedgeN cosθ - mgN = mg/cosθ

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