document.write( "Question 1080415: Quadtatice model-projectile
\n" ); document.write( "I need to find an equation and the initial velocity for the equation-\r
\n" ); document.write( "\n" ); document.write( "h(t)=-16t^2+Vo*t+Ho\r
\n" ); document.write( "\n" ); document.write( "Ho=is the ball's height (in feet) at moment of release, the initial height\r
\n" ); document.write( "\n" ); document.write( "Vo= ball's speed (in feet/sec) at the moment of release, initial velocity\r
\n" ); document.write( "\n" ); document.write( "T= time (in seconds) since the ball was released \r
\n" ); document.write( "\n" ); document.write( "ho and vo are constants\r
\n" ); document.write( "\n" ); document.write( "I threw a ball up about 10 feet\r
\n" ); document.write( "\n" ); document.write( "Initial height started: 3.92 feet
\n" ); document.write( "Flight time:2.28 seconds\r
\n" ); document.write( "\n" ); document.write( "I need help being able to come up with an equation with this data to bring up on my calculator and graph. I don't know how find/solve or how to find the Vo which is the initial velocity.
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Algebra.Com's Answer #694561 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Quadtatice model-projectile
\n" ); document.write( "I need to find an equation and the initial velocity for the equation-
\n" ); document.write( "h(t)=-16t^2+Vo*t+Ho
\n" ); document.write( "Ho=is the ball's height (in feet) at moment of release, the initial height
\n" ); document.write( "Vo= ball's speed (in feet/sec) at the moment of release, initial velocity
\n" ); document.write( "T= time (in seconds) since the ball was released
\n" ); document.write( "ho and vo are constants
\n" ); document.write( "I threw a ball up about 10 feet
\n" ); document.write( "Initial height started: 3.92 feet
\n" ); document.write( "Flight time:2.28 seconds
\n" ); document.write( "I need help being able to come up with an equation with this data to bring up on my calculator and graph. I don't know how find/solve or how to find the Vo which is the initial velocity.
\n" ); document.write( "------
\n" ); document.write( "h(0) = 3.92 ft
\n" ); document.write( "h(2.28) = 0 ft
\n" ); document.write( "h(1.14) = 10 ft
\n" ); document.write( "-------------
\n" ); document.write( "Equation Form:: -16t^2 + Vot + Ho = h(t)
\n" ); document.write( "Use the three equations above to form the following ::
\n" ); document.write( "-16*0^2 + Vo*0 + Ho = 3.92
\n" ); document.write( "-16*2.28^2 + Vo*2.28 + 3.92= 0\r
\n" ); document.write( "\n" ); document.write( "--------------------------------------
\n" ); document.write( "Solve the System::
\n" ); document.write( "Ho = 3.92
\n" ); document.write( "2.28*Vo = 16*2.28^2 - 3.92
\n" ); document.write( "2.28*Vo = 79.25
\n" ); document.write( "Vo = 34.76 ft/sec
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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