#### Question

Explain the concept of centripetal force.

#### Solution

a. Force acting on a particle performing circular motion along the radius of circle and directed towards the centre of the circle is called centripetal force.

It is given by FCP =`m(V^2)/r`

where, r = radius of circular path.

b. Example: Electron revolves around the nucleus of an atom. The necessary centripetal force is provided by electrostatic force of attraction between positively charged nucleus and negatively charged electron.

c. Unit: N in SI system and dyne in CGS system.

d. Dimensions: `[M^1L^1T^-2]`

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Explain the Concept of Centripetal Force. Concept: Dynamics of Uniform Circular Motion - Centripetal Force.

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