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OpenStudy (anonymous):
From a certain height, a helicopter starts going up with an acceleration. In 10sec, it goes up by 1/6th of its original height. If a ball is dropped at this instant, it takes 5 sec to reach the ground. What is the original height from which the helicopter has started and with what acceleration?
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OpenStudy (anonymous):
this is how my figure looks like. |dw:1345906589532:dw|
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