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A falling stone takes 0.320 s to pass a window 2.30 m high. From what height (in meters) above the top of the window did the stone fall?
13 years ago

Answers

drwls
Let that distance be H.

Time to reach top of window:
t1 = sqrt(2 H/g)

Time to reach bottom of window:
t2 = sqrt([2(H+2.3)/g]
t2 - t1 = 0.32 = sqrt[2(H+2.3)/g] -sqrt(2H/g)

g = 9.8 m/s^2. You have only one unknown. Solve for H
13 years ago
ash
.789m/s^2
10 years ago

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