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There is a simple equasion that gives an approximate answer. h = 1/2 g t2 This is not completely accurate, as it ignores the effects of air resistance of an object, but ofers a very close approximate for most common objects. ( a feather will not fall as fast as a ball due to air resistance. This calculation assumes a vaccume to be completely accurate. ) The value g is gravity. In Metric this is 9.81 m/s/s usually calculated as 9.8 or simply as 10 if you are doing the calculation s in your head. The value t is the time taken. The result h is the distance or the height in meters. If someone jumps off a bridge into the water below, and he takes 2.5 seconds from the bridge to the water we can calculate the height of the bridge. height = 1/2 ( 9.81 x (2.52)) height = 1/2 ( 9.81 x 6.25) height = 1/2 61.3125 height = 30.6562 meters

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