A block of mass m is placed on a smooth inclined plane of inclination nbsp- theta- with the horizontal- The force exerted by the plane on the block has a magnitude-a- mg-b- mg-cos theta-c- mg cos theta-d- mg tan theta-

(c) mg cos theta;From the free body diagram,N = mg cos theta;Normal force exerted by the plane on the block is mg cos theta;. ...

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Standard XII

Physics

Velocity of COM

A block of ma...

Question

A block of mass m is placed on a smooth inclined plane of inclination θ with the horizontal. The force exerted by the plane on the block has a magnitude
(a) mg
(b) mg/cosθ
(c) mg cosθ
(d) mg tanθ

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Solution

(c) mg cosθ

From the free-body diagram,
N = mg cosθ
Normal force exerted by the plane on the block is mg cosθ.

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A block of mass m is placed on a smooth inclined plane of inclination θ with the horizontal. The force exerted by the plane on the block has a magnitude (a) mg (b) mg/cosθ (c) mg cosθ (d) mg tanθ

(c) mg cosθFrom the free-body diagram,N = mg cosθNormal force exerted by the plane on the block is mg cosθ.

A block of mass m is placed on a smooth inclined plane of inclination θ with the horizontal. The force exerted by the plane on the block has a magnitude
(a) mg
(b) mg/cosθ
(c) mg cosθ
(d) mg tanθ

(c) mg cosθ

From the free-body diagram,
N = mg cosθ
Normal force exerted by the plane on the block is mg cosθ.