Question

A rock falls off a cliff and hits the ground after three seconds. The rock's velocity is 29.4 m/s when it hits the ground. What is its acceleration of the rock in the downward direction?

A. 0.31 m/s2

B. 3 m/s2

C. 9.8 m/s2

D. 88.2 m/s2

Answer 1

The answer is 9.8 m/s2 as 9.8 m/s2 is the downward acceleration due to gravity.

Answer 2

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