CBSE Class 11-science Answered
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 | 14 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 | 14 Nov, 2012, 10:02: AM
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