document.write( "Question 206100: 20. A punter can kick a football with an initial velocity of 48 feet per second. How many seconds will it take for the ball to return to the ground? (Hint: use the formula h= vt – 16t2.) \n" ); document.write( "
Algebra.Com's Answer #155686 by ankor@dixie-net.com(22740)\"\" \"About 
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0. A punter can kick a football with an initial velocity of 48 feet per second.
\n" ); document.write( " How many seconds will it take for the ball to return to the ground? (Hint: use the formula h= vt – 16t2.)
\n" ); document.write( ":
\n" ); document.write( "h = 0 when it hits the ground, therefore:
\n" ); document.write( "-16t^2 + 48t = 0
\n" ); document.write( ":
\n" ); document.write( "Factor out -16t
\n" ); document.write( "-16t(t + 3) = 0
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\n" ); document.write( "Two solutions
\n" ); document.write( "t = 0, when it begins it's upward journey
\n" ); document.write( "and
\n" ); document.write( "t = 3 sec, when it returns to earth \n" ); document.write( "
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