Question
A rock falls off the edge of a cliff and strikes the ground after 3.8 s. What is the height of the cliff? Assume air resistance is negligible
Answers
Jai
Use the formula:
h = vo*t - (1/2)gt^2
Since the rock experiences freefall, initial velocity (vo) is zero:
h = -(1/2)gt^2
Substitute:
h = -(1/2)(-9.8)(3.8^2)
h = ?
h = vo*t - (1/2)gt^2
Since the rock experiences freefall, initial velocity (vo) is zero:
h = -(1/2)gt^2
Substitute:
h = -(1/2)(-9.8)(3.8^2)
h = ?
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