You visited us 4 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard VI

Physics

Kinetic Friction

A force of 20...

Question

A force of 20 N is applied on a block but it doesn't move. What is the frictional force on the block?

Open in App

Solution

Friction always acts opposite to the motion.
Static friction acts when a body is at rest and we try to move it on a rough surface.
Hence,

Since body stays at rest.
Hence, net force on body = 0
20 - friction = 0
Friction = 20N

Suggest Corrections

Similar questions

Q. Rahul is applying a force of 20 N on a block. However, he is not able to move it. The frictional force acting on the block is .

Q. The force required for a block to just start its motion is 15 N. If Avinash applied a force of 20 N to the block then what will be the frictional force on the block?

A force of 100 N is applied on a block of mass 3kg as shown below. The coefficient of friction between wall and the block is $\frac{1}{4}$ . The friction force acting on the block is

Q. A block of mass

1 k g

is pushed against a rough vertical wall with a force of

20 N

. coefficient of static friction being

\frac{1}{4}

. Another horizontal force of

10 N

is applied on the block in a direction parallel to the wall. Will the block move? If yes, with what acceleration? If no, find the frictional force exerted by the wall on the block.

(g = 10 m / s^{2})

Q. As given in the figure two blocks

A

B

of weight

20 N

and

100 N

respectively are in equilibrium. These are being pressed against a wall by force

F

as shown. If the coefficient of friction between the two blocks is

0.1

and between block

B

and the wall is

0.15

, the frictional force applied by wall on block

B

(f_{2})

and the frictional force applied by block

B

on block

A

(f_{1})

Join BYJU'S Learning Program

A force of 20 N is applied on a block but it doesn't move. What is the frictional force on the block?

Friction always acts opposite to the motion. Static friction acts when a body is at rest and we try to move it on a rough surface. Hence, Since body stays at rest. Hence, net force on body = 0 20 - friction = 0 Friction = 20N

Friction always acts opposite to the motion.
Static friction acts when a body is at rest and we try to move it on a rough surface.
Hence,

Since body stays at rest.
Hence, net force on body = 0
20 - friction = 0
Friction = 20N