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A block of mass m slides down an inclined plane of inclination ? with uniform speed. The coefficient of friction between the block and the plane is µ . Find the contact force between the block and the plane.

A block of mass m slides down an inclined plane of inclination ? with uniform speed. The coefficient of friction between the block and the plane is µ . Find the contact force between the block and the plane.

Grade:10

3 Answers

Shankararama Sharma
35 Points
11 years ago

The normal reaction for the block on the plane is mgcos? .

The contact force between them is the friction(f)=µmgcos?

µmgcos? .

Aniket Patra
48 Points
11 years ago

If the speed is to be constant then there shouldn't be no accelaration..The condition is tan(angle of inclination of the inclined plane)=coefficient of friction.

vikas askiitian expert
509 Points
11 years ago

since the block is moving with constant velocity that means net force acting on the body is 0..

friction force(f) = mgsin@       ...............1

           f = u(normal reaction)

            f =uN

        mgsin@ = uN

          N = mgsin@/u    (contact force)

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