I really do not understand the concepts of this question... please help with a step by step demostration. *A parachutist's speed during a free fall reaches 108 miles per hour. What is this speed in feet per second? At this speed, how many feet will the parachutist fall during 20 seconds of free fall? In your computations, use the fact that 1 mile is equal to 5280 feet. Do not round your answers

Question

mathmale · Answer

The first part of this problem is essentially one of conversion of units:  that is, the conversion of 108 mph to feet/sec.  This requires that you know that 1 miles = 5280 feet (as given in the problem statement) and that 1 hour = 60 minutes = 3600 seconds.

The second problem involves multiplying a time rate (speed in feet per second) by a time interval (measured in seconds), to obtain a distance, the distance the parachutist falls in 20 sec.

mathmale · Answer

Hint:  given the rate$$\frac{ 108~miles }{ 1~hour }$$ by what fraction involving units should you multiply this rate to get rid of "miles" in favor of "feet?"

mathmale · Answer

That would be one of the 3 conversion factors you'll need to finish this problem solution.

mathmale · Answer

Excuse me, but I'm logging off how.  Good luck.  If someone else hasn't helped you by tomorrow morning, I'll be back on again then.

anonymous · Answer

This actually helped. Thank youu (:

mathmale · Answer

I'm very glad to hear that.  Let me know (tomorrow) if anything remains unclear.

imstuck · Answer

Do you still need help on this?  I see mathmale had to go.  I can continue with you, if you'd like!