Question
(a) Just for fun, a person jumps from rest from the top of a cliff overlooking a lake. In falling through a distance H, she acquires a certain speed v. Assuming free-fall conditions, how much farther must she fall in order to acquire speed 2v? Express your answer in terms of H.
Answers
drwls
Four times farther, since the kinetic energy must quadruple.
4 H
4 H
Janey
Soko
Helper
I found its 3H