117. A body is thrown up with a velocity 30ms.
At same time another body is dropped from
a height of 30m. Their relative acceleration
after 0.8 seconds is
(1) 4g
(2) zero
(3) 2g
(4) g/2
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A body is thrown up with a velocity 30m/s. at same time another body is dropped from a height of 30m. their relative acceleration after 0.8 second is ...
- (1)4g
- (2) zero
- (3) 2g
- (4) g/2
answer : option (2) zero
explanation : both bodies are moving under gravity. means, acceleration acting on each body is equal to acceleration due to gravity. i.e., g.
so, relative acceleration = g - g = 0
hence, relative acceleration of bodies after 0.8 second is zero.
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