A solid sphere falls with a terminal velocity of 20 ms-1 in air. If it is allowed to fall in vacuum.

Q: A solid sphere falls with a terminal velocity of 20 ms-1 in air. If it is allowed to fall in vacuum.

(a) terminal velocity will be 20 ms-1

(b) terminal velocity will be less than 20 ms-1

(c) terminal velocity will be greater than 20 ms-1

(d) no terminal velocity will be attained

Ans: (d)

Author: Rajesh Jha

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