document.write( "Question 1173126: An object is thrown vertically upward with a velocity of 96m/sec. The distance S(t) above the ground after t second is given by the formula S(t)= 96t-5t²\r
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Algebra.Com's Answer #798285 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "(a)  substitute t = 3 into the formula and calculate.\r\n" );
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document.write( "(b)  To find this value (values) of t, solve the quadratic equation\r\n" );
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document.write( "         96-5t^2 = 172.\r\n" );
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