Question

Explain the concept of centripetal force.​

Answer 1

Answer:

the force that is necessary to keep an object moving in a curved path and that is directed inward toward the center of rotation a string on the end of which a stone is whirled about exerts centripetal force on the stone — compare centrifugal force.

Explanation:

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Answer 2

Answer:

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

mV2r

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

1

L

1

T

−

2

]

[M1L1T-2]