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Answered by prash7777
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When an object is kept on an inclined plane and slides when its downward component of force is equal to frictional force.

Consider, angle of the inclined plane as θ and coefficient of friction between the body and plane as \muμ

If mass of the object is m, then the weight of the object is mg.

On inclined plane, consider components of the weight. Along the plane,

F_x = mg sin\thetaF

x

=mgsinθ

Perpendicular to it, F_y = mg cos\thetaF

y

=mgcosθ

The reaction force is N = mg cos\thetaN=mgcosθ

Frictional force:

f=\mu N = \mu mg cos \thetaf=μN=μmgcosθ

Refer to the attached diagram below.

Learn more about: Motion on inclined plane

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