Karen drops a 2.0 kg rock from the top of a mountain. determine the distance the rock travels after falling for 3 seconds assuming it has reached free fall and given the gravitational acceleration of 9.8 m/sec2 downward. [hint: distance=(0.5)*(acceleration)*(time 2)]

Explanation:

The data given is as follows.

     mass = 2.0 kg

     time = 3 seconds

 gravitational acceleration =

Calculate the distance traveled by the rock when it falls is as follows.

                                 =

                                 =

                                 = 44.1 m

Therefore, the distance traveled by rock is 44.1 meter.

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b. false

explanation:

suppose a rock in free fall is dropped off a cliff. after falling for 5 seconds, its speed would not be 100 m/s.