A person is stuck inside a falling elevator, whose cable broke 10 meters above the ground. Lets say the person wanted to cancel out their final velocity by jumping exactly when the elevator hits bottom. Assume the elevator started from rest.

a.

How long after the cable breaks would the person need to jump?

b.

In order to completely cancel their accumulated velocity, at what velocity (relative to the elevator) would they need to jump?

c.

If they were to jump at this velocity on stable ground, how high would they go? Is this reasonable?

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dm