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Knowing that it strikes the water 4s after release

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Reference no: EM13620185

A stone is thrown vertically upward from a point on a bridge located 40m above the water. Knowing that it strikes the water 4s after release, determine: (a) The speed at which the stone was thrown upward. (b) The speed at which the stone strikes the water.

Reference no: EM13620185

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