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A girl drops a rock from the edge of a cliff and observes that it strikes the bottom 1.895 s later How high is the cliff?
Wiki User
∙ 14y ago
The distance covered during time ' T ' seconds under constant acceleration is
D = V0T + 1/2 A T2
D = the distance
V0 = speed at the beginning of the time T
A = acceleration during the time T
In this question, V0 = 0, T = 1.895, and A = acceleration of gravity = 9.8 m/s2.
D = 0 + (1/2) (9.8) (1.895)2 = 17.6 meters (57.8 feet) (rounded)
Wiki User
∙ 14y ago
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