Use the equation ut−16t2=0, where v=velocity in feet per second and t=time in seconds. A rocket at a fireworks display was launched with the initial velocity of 208 ft/sec. How many seconds was it in the air before it splashed down in the lake?
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Determine the time for the given equation.
208t−16t216t(13−t)16t1616tt13−t13−t+t13 seconds =0=0=0=160=0=0=0+t=tsubstitute for the given valuecommon monomial factorequate each factor with 0divide both sides of the equation by 16represents the launch timeequate each factor with 0addition property of equalitytime the rocket remains in air