JEE Main Physics question

**Statement 1:** At the centre of the earth, a body has a centre of mass but no centre of gravity.

**Statement 2:** Acceleration due to gravity is zero at the centre of the earth.

(A)Assertion is True, Reason is True; Reason is correct explanation for AssertionCorrect
(B)Assertion is True, Reason is True; Reason is not correct explanation for Assertion
(C)Assertion is True, Reason is False
(D)Assertion is False, Reason is True

Answer: (A)

Solution

Centre of mass is a purely geometric/mass-distribution concept and always exists (True in Statement 1). Centre of gravity, however, is defined via the weighted average of

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Question ID VK-159167