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How far to the nearest tenth of a meter can a runner running at 7 meters per second run in the time it takes a rock to fall from rest 61 meters?
Wiki User
∙ 12y ago
take g = 9.82 m/s/s
to find t for fall, first find v (final velocity)
v = sq root ( 2 * 9.82 * 61 ) = 34.613 metres / sec
to find t, use t = velocity / acceleration, so t = 34.613 / 9.82 = 3.525 sec
so 7 metres / sec for 3.525 sec = 24.675 metres = 24.7 metres
Wiki User
∙ 12y ago
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