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a stone falls from a ledge and takes 8 seconds to hit the ground the stone has an original velocity of 0m/s how tall is the ledge

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Greenleafable

Time until a stone hits the ground :t=8s. Initial velocity of the stone:vi=0m/s. We have to calculate the height of the ledge. Formula for this is: h=vi t + gt^22, where g=9.81 m/s^2. h=gt^2/2. h=9.81 m/s^2(8s)^2/2, h=9.81 m/s^264 s^2/2, h=9.81*32m, h=313.92 m. Answer: The ledge is 313.92 m tall.

matthewbarber81

the answer The ledge is 313.92 m tall

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