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## Homework Statement

If you jump out of an airplane and your parachute fails to open our downward velocity t seconds after jumping is approximated for g=9.8m/sec^2 and k=.2 sec, by

v(t)=(g/k)(1-e^(-kt))

So, if you jump from 5000 meters above the ground write an equation whose solution is the number of seconds you fall before hitting the ground.

## The Attempt at a Solution

This is coming from the section in my book on definite integrals but I'm not sure where to start. Thanks for any help.