22. A ball is thrown vertically upward. It has a speed of
10 m/s when it has reached one half of its maximum
height. How high does the ball rise? (Taking
9 = 10 m/s)
[AIPMT (Prelims)-2005]
(1) 15 m
(2) 10 m
(3) 20 m
(4) 5 m
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2
the correct answer is 20 m
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