Home
Class 12
PHYSICS
A block of mass 2 kg rests on an incline...

A block of mass 2 kg rests on an inclined plane which makes an angle of `30^(@)` with the horizontal. The coefficient of friction between the block and the surface is `sqrt(3//2)`. (i) What force should be applied on the block so that it moves down without any acceleration ? (ii) What force should be applied on the block so that it moves up without any acceleration ? (iii) Calculate the ratio of the powers in the above two cases if the block moves with uniform speed in both the cases.

A

11.21

B

4.5

C

6.7

D

30.14

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

A block of mass 2kg rests on a rough inclined plane making an angle of 30^@ with the horizontal. The coefficient of static friction between the block and the plane is 0.7. The frictional force on the block is

A block of mass 2kg rests on a rough inclined plane making an angle of 30^@ with the horizontal. The coefficient of static friction between the block and the plane is 0.7. The frictional force on the block is

A block of mass 3 kg rests on a rough inclined plane making an angle of 30^(@) . With the horizontal. The coefficient of static friction between the block and the plane is 0.7. The frictional force on the block is

A block of mass m slides down an inclined plane which makes an angle theta with the horizontal. The coefficient of friction between the block and the plane is mu . The force exerted by the block on the plane is

A block of mass 2 kg rests on a rough inclined plane making an angle of 30° with the horizontal. If mu_(S)= 0.6 , what is the frictional force on the block ?

A block rests on a rough inclined plane making an angle of 30^@ with the horizontal. The coefficient of static friction between the block and the plane is 0.8. If the frictional force on the block is 10N, the mass of the block (in kg) is

A block is lying on an inclined plane which makes an angle of 60^@ with the horizontal. If coefficient of friction between the block and the plane is 0.25 and g = 10 ms^(-2) , the acceleration of block when it is moves along the plane will be

A block of mass 5 kg rests on a inclined plane at an angle of 30^(@) with the horizontal. If the block just begins to slide, then what is the coefficient of static friction between the block and the surface?

A block of mass 5 kg rests on a inclined plane at an angle of 30^(@) with the horizontal. If the block just begins to slide, then what is the coefficient of static friction between the block and the surface?

A block of mass 5 kg rests on a inclined plane at an angle of 30^(@) with the horizontal. If the block just begins to slide, then what is the coefficient of static friction between the block and the surface?