A solid sphere moves with a terminal velocity of 20 m/s in air at a place where g=9.8 m/sec2. the sphere is taken to a gravity free space having air at the same pressure and pushed down at a speed of 20 m/s.

Asked by  | 14th Nov, 2012, 09:38: AM

Expert Answer:

in the first case:
weight of sphere-b .force=viscous drag
weight will be 0 at gravity free space and so ill be the byouant force.
so the d option will be correct.

Answered by  | 14th Nov, 2012, 10:02: AM

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