document.write( "Question 100604This question is from textbook
\n" ); document.write( ": At 3:10P.M. a skydiver jumps from an airplane at an altitude of 15,000 feet. At 3:10:26 at an altitude of 4200, the skydiver opens the parachute. What was the skydiver's average speed during the 26-second free-fall? \n" ); document.write( "
Algebra.Com's Answer #73228 by doukungfoo(195)\"\" \"About 
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This problem deals with distance, speed and time.
\n" ); document.write( "to find average speed you must divide distance by time.
\n" ); document.write( "So first we need to find the distance traveled by the skydiver
\n" ); document.write( "during his/her freefall.
\n" ); document.write( "The skydiver started at an altitude of 15,000 feet and opened the parachute
\n" ); document.write( "at 4200 feet.
\n" ); document.write( "So the distance traveled during freefall is
\n" ); document.write( "15000 - 4200 = 10800 feet
\n" ); document.write( "Now just divide the distance by the time
\n" ); document.write( "10800 ft / 26 seconds = average speed
\n" ); document.write( "415.3846154 ft/s = average speed
\n" ); document.write( "Note: since the distance unit given is feet and the time unit given
\n" ); document.write( "is seconds. The answer is expressed in feet per second. (ft/s)
\n" ); document.write( "Also you can round the answer or not depending if specified by your
\n" ); document.write( "instructor or text book.
\n" ); document.write( "For example the answer rounded to the nearest whole foot would be:
\n" ); document.write( "415 ft/s
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