KCET · Physics · Center of Mass Momentum and Collision
The centre of mass of an extended body on the surface of the earth and its centre of gravity
- A are always at the same point only for spherical bodies.
- B can never be at the same point.
- C centre of mass coincides with the centre of gravity of a body if the size of the body is negligible as compared to the size (or radius) of the earth.
- D are always at the same point for any size of the body.
Answer & Solution
Correct Answer
(C) centre of mass coincides with the centre of gravity of a body if the size of the body is negligible as compared to the size (or radius) of the earth.
Step-by-step Solution
Detailed explanation
The centre of mass of an extended body on the surface of the Earth and its centre of gravity coincide if the size of the body is negligible as compared to the size (or radius) of the Earth.
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