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Q.

A body falls freely from a height ‘h’ after two seconds if acceleration due to gravity is reversed the body

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a

falls down with uniform velocity

b

continues to fall down

c

raises up with acceleration

d

falls down with retardation & goes up again with acceleration after some time

answer is B.

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Detailed Solution

As in this 2seconds the body will gain some velocity and on reversing the direction of the acceleration it will retard and come to rest and then will accelerate in the upward direction.

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