MHT CET 2026 Physics question

Physics Motion in a Straight Line MHT CET 2026

Spherical insulating ball and a spherical metallic ball of same size and mass are dropped from the same height. Choose the correct statement out of the following {Assume negligible air friction}

(A)Time taken by them to reach the earth's surface will be independent of the properties of their materialsCorrect
(B)Insulating ball will reach the earth's surface earlier than the metal ball.
(C)Both will reach the earth's surface simultaneously.
(D)Metal ball will reach the earth's surface earlier than the insulating ball.

Answer: (A)

Solution

With negligible air friction the only force on each ball is gravity, so each falls with the same acceleration (independent of mass, size or material), and depends only on the height . Hence the time of fall does not depend on whether the ball is an insulator or a metal, which is

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Question ID VK-097522