Q. The force that keeps a revolving body to its orbits is:

A
Its weight
B
Its centripetal force
C
Its inertia
D
Its centrifugal force
Solution:

A centripetal force is a force that makes a body follow a curved path.

Its direction is always orthogonal to the motion of the body and towards the fixed point of the instantaneous center of curvature of the path.

Isaac Newton described it as “a force by which bodies are drawn or impelled, or in any way tend, towards a point as to a centre”.

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