document.write( "Question 863712: A projectile on Earth is fired straight upward so that its distance (in feet) above the ground t seconds after firing is given by s (t) = 16t² + 400t
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Algebra.Com's Answer #520572 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!


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document.write( "Hi
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document.write( "s (t) = -16t^ + 400t    |s' = -32t + 400, t = 12.5
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document.write( "      = -16(t - 400/32)^2) + 2500  |Completing Square
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document.write( "      = -16(t - 12.5)^2) + 2500
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document.write( "Hmax = 2500ft in 12.5sec \n" );
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