document.write( "Question 637396: a rocket is launched from atop a 102-foot cliff with an initial velocity of 158ft/s. substitute the values into the vertical motion formula h=-16t^2+vt+c. let h=0.use the quadratic formula to find out how long after the rocket is launched it will hit the ground. round to the nearest tenth of a second. show work. \n" ); document.write( "

Algebra.Com's Answer #401625 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "h= -16t^2+vt+c
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document.write( "Question states***initial velocity of 158ft/s,launched from atop a 102-foot cliff
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document.write( " -16t^2+ 158t + 102 = 0        || ax^2 + bx + c = 0
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document.write( "    x = 10.5 sec
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