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23 January, 03:18

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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  1. 23 January, 04:14
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    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 + g*t^2*2, where g=9.81 m/s^2. h=g*t^2/2. h=9.81 m/s^2 * (8s) ^2/2, h=9.81 m/s^2*64 s^2/2, h=9.81*32m, h=313.92 m. Answer: The ledge is 313.92 m tall.
  2. 23 January, 05:04
    0
    The answer The ledge is 313.92 m tall
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