Fred jumps from a cliff to a deep pool of water. It took him 3.5 seconds to reach the water. Assuming that air resistance is negligible and the acceleration due to gravity is 9.8m/s/s find:
a)Fred's speed upon impact with the water
b) The height of the cliff
Upon impact with the water Fred it brought to rest in a time of 1.2 seconds. Determine the average acceleration of Fred during this time.
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