CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Static Friction

Which of the ...

Question

Which of the following statement is correct, when a man walks on a rough surface:

A

The frictional force exerted by the surface keeps him moving

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

The force which the man exerts on the floor keeps him moving

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

The reaction of the force which the man exerts on floor keeps him moving

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

None of the above

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C The reaction of the force which the man exerts on floor keeps him moving
When the man pushes the rough surface backward on walking, then surface (from Newton's third Law) applies reaction force in forward direction. It occurs because there is friction between man & surface.

Suggest Corrections

thumbs-up

4

Similar questions

Q. A man of mass 75 kg stands in a lift. What force does the floor exert on him when the lift starts moving upwards with an acceleration of

2 m / s^{2}

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

Q. When a person walks on a rough surface, the frictional force exerted by the surface on the person is opposite to the direction of his motion.

Q. Assertion :When a person walks on a rough surface, the frictional force exerted by surface on the person is opposite to the direction of his motion. Reason: It is the force exerted by the road on the person that causes the motion.

Q. Statement 1: When a man is standing on a stationary horizontal surface, the normal force exerted by the ground on him is equal and opposite to his weight.
Statement 2: According to Newton's

3^{r d}

law , every action has an equal and opposite reaction.

Q. A man pulls on a cord attached to heavy

200 N

block. The coefficient of static friction between the box and the floor is

μ = 0.5

.
If the cord makes an angle of

θ = {30.0}^{o}

with the floor, what normal force

F_{N}

will the floor be exerting on the block when the man is exerting enough force so that the box is barely about to move?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Rubbing It In: The Basics of Friction

PHYSICS

Watch in App

explore_more_icon

Explore more

Static Friction

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon