How far this ball fell during 4 sec. it took to reach its terminal speed of 2 m/s? Assume acceleration was?

Question

constant.
1) 2 m
2) 4 m
3) 8 m
4) Insufficient data

Answer 1

a = velocity change / time = final velocity / time

drop = 1/2 at^2 = 1/2 final velocity * time

They give you the final velocity and the time. Multiply.

Answer 2

The answer is 3, 8 m.
This question may have been a bit confusing since the acceleration was constant. Usually in a fall through air the model is F=m*(g-k*v), where v is the instantaneous velocity of the falling object, and k is the drag factor.

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