question archive A large rock with a weight of 1,039
A large rock with a weight of 1,039
Subject:PhysicsPrice:2.86 Bought3
A large rock with a weight of 1,039.09 N rests at the edge of a cliff that is 87.75 m tall. Suppose the rock falls off the cliff. How fast is the rock going just before it hits the ground? You do not need to know the time it takes for the rock to fall.
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Velocity = square root of (2gd)
Where g is acceleration due to gravity (9.8 m/s) and d is the distance travelled
= square root of (2 * 9.8 * 87.75)
=41.47 m/s
