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Question

An aeroplane is flying in a horizontal direction with a velocity 600 km/h at height of 1960 m. When it is vertically above the point A on the ground, a body is dropped from it. The body strikes the ground at point B. Calculate the distance AB.

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Solution

From h=12gt2

we have tOB=2hOAg=2×19609.8=20s

Horizontal distance AB=vtOB

=(600×518m/s)(20s)

=3333.33m=3.33km


374066_243649_ans_bb917cf1e95d499584ac483f94456982.JPG

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