document.write( "Question 1028027: At a basketball game, members of the Spirit Club use a t-shirt cannon to launch team t-shirts to spectators in the stands. The equation below describes the height, h, of the t-shirt, t seconds after it is shot from the cannon c feet above the ground, at an initial velocity of v.\r
\n" ); document.write( "\n" ); document.write( "h = -16t^2 + vt + c\r
\n" ); document.write( "\n" ); document.write( "Solve the equation for initial velocity, v.
\n" ); document.write( "The cannon launched a t-shirt from an initial height of 5 feet. After 3 seconds the shirt has reached a height of 131 feet. Use the equation from #1 to find the initial velocity of the t-shirt.
\n" ); document.write( "What does the equation from #1 tell you about the value of the velocity, v, when t = 0?
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Algebra.Com's Answer #643217 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
\"+h+=+-16t%5E2+%2B+v%2At+%2B+c+\"
\n" ); document.write( "Solve for \"+v+\":
\n" ); document.write( "\"+v%2At+=++16t%5E2+-+c+%2B+h+\"
\n" ); document.write( "\"+v+=+16t+%2B+%28+h+-+c+%29+%2F+t+\"
\n" ); document.write( "----------------------
\n" ); document.write( "The initial height is when \"+t+=+0+\"
\n" ); document.write( "\"+h%280%29+=+-16%2A0%5E2+%2B+v%2A0+%2B+c+\"
\n" ); document.write( "\"+h%280%29+=+c+\"
\n" ); document.write( "given:
\n" ); document.write( "\"+c+=+5+\" ft
\n" ); document.write( "\"+t+=+3+\" sec
\n" ); document.write( "\"+h+=+131+\"
\n" ); document.write( "------------------
\n" ); document.write( "\"+v+=+16t+%2B+%28+h+-+c+%29+%2F+t+\"
\n" ); document.write( "\"+v+=+16%2A3+%2B+%28131+-+5+%29+%2F+3+\"
\n" ); document.write( "\"+v+=+48+%2B+126%2F3+\"
\n" ); document.write( "\"+v+=+48+%2B+42+\"
\n" ); document.write( "\"+v+=+90+\" ft/sec
\n" ); document.write( "-------------------
\n" ); document.write( "\"+v+=+16t+%2B+%28+h+-+c+%29+%2F+t+\"
\n" ); document.write( "When \"+t+=+0+\", then \"+h+=+c+\" because
\n" ); document.write( "you are at the initial height
\n" ); document.write( "\"+%28+h-c+%29%2Ft+=+0%2F0+\" and
\n" ); document.write( "\"+v+=+16%2A0+%2B+0%2F0+\"
\n" ); document.write( "\"+v+=+0%2F0+\"
\n" ); document.write( "That means you cannot determine the initial
\n" ); document.write( "velocity at \"+t+=+0+\"
\n" ); document.write( "
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