☰
✕

Laws of Motion
Question
Wired Faculty App

What is work done by centripetal force? Explain.

Answer

The direction of centripetal force is always perpendicular to the direction of instantaneous velocity.
The instantaneous displacement is in the direction of instantaneous velocity, therefore instantaneous displacement of particle is perpendicular to centripetal force.
Hence work done by centripetal force is zero.

Sponsor Area

Some More Questions From Laws of Motion Chapter

Which law of motion defines the force?

What happens to a stone tied to the end of string and whirled in a circle if the string suddenly breaks?

Which law of motion gives the quantitative knowledge of force?

Which law of motion is the real law of motion?

Which law of motion gives the quantitative definition of force?

Why do we pull the rope in downward direction for climbing up?

What can set the body at rest into motion?

What do you mean by mechanically isolated system?

What are absolute units of force?

What are gravitational units of force?