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physics mechanics

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Post  Admin Tue Jan 12, 2010 12:49 am

A ball is dropped from the top of a lower of height h. It covers a distance h/2 in the last second of its motion. How long does the ball remain in air? Take g = 10 ms-2.
(A) (2 + √2 ) sec
(B) √2 sec
(C) 2 sec
(D) All are possible.

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