document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1167161>Question 1167161</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A bowling ball is thrown straight up with an initial velocity of 32 ft/sec from a height of 4 feet.<BR>\n" );
document.write( "a. Write a function that gives the height, h (in feet), of the bowling ball after t seconds.<BR>\n" );
document.write( "b. Find the height of the bowling ball after 1 second.<BR>\n" );
document.write( "c. How long does it take the bowling ball to fall back to 7 feet? (round off to the nearest thousandths) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #791757 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=791757\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> h(t)=-16t^2+32t+4\r<BR>\n" );
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document.write( "h(1)=-16+32+4=20 ft.\r<BR>\n" );
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document.write( "7=-16t^2+32t+4<BR>\n" );
document.write( "so 16t^2-32t+3=0<BR>\n" );
document.write( "t=(1/32)(+32+/- sqrt (1024-192)); sqrt of 832=28.844<BR>\n" );
document.write( "t=60.844/32=1.90125 sec going down, the answer or 1.901 sec.   [3.16/32 or 0.0988 sec to be at 7 feet going up.]\r<BR>\n" );
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