document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=32147>Question 32147</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 3)	Suppose you throw a baseball straight up at a velocity of 64 feet per second. A function can be created by expressing distance above the ground, s, as a function of time, t. This function is s = -16t2 + v0t + s0 <BR>\n" );
document.write( "•	16 represents 1/2g, the gravitational pull due to gravity (measured in feet per second2). <BR>\n" );
document.write( "•	v0 is the initial velocity (how hard do you throw the object, measured in feet per second).<BR>\n" );
document.write( "•	s0 is the initial distance above ground (in feet). If you are standing on the ground, then s0 = 0.<BR>\n" );
document.write( "a)	What is the function that describes this problem?<BR>\n" );
document.write( "b)	The ball will be how high above the ground after 1 second?<BR>\n" );
document.write( "c)      How long will it take to hit the ground?<BR>\n" );
document.write( "d)	What is the maximum height of the ball?  What time will the maximum height be attained?<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #18659 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=18659\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a)s(t)=-16t^2+64t+0<BR>\n" );
document.write( "b)s(1)=-16(1)^2+64(1)=-16+64=48 ft.<BR>\n" );
document.write( "c)When it hits the ground the seight above the ground is zero.<BR>\n" );
document.write( "  -16t^2+64t=0<BR>\n" );
document.write( "  -16t(t-4)=0<BR>\n" );
document.write( "  t=0 or t=4<BR>\n" );
document.write( "The ball is on the ground at time=0 and at time t=4<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );