Originally Posted by

**killasnake** Hi I need help with this question:

A steam catapult aboard an aircraft carrier can accelerate an F-18 Hornet so that its velocity is given by

v(t) = 104.85t feet/second

If the jet reaches its take-off velocity of 173 miles per hour at the end of the runway, how long does it take for the jet to take off?

__________ seconds.

How long is the runway?

__________ feet

I figured out that I needed to convert mph to feet per second which is:

173mph to 253.7333 fps

And this is where I get stuck I don't know what to do.