SOLUTION: During the2008 Masters Tournament, Tiger Woods ball was projected upward with an initial velocity of 88ft/sec(vo=88). When will the ball be 120 ft above the ground?
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-> SOLUTION: During the2008 Masters Tournament, Tiger Woods ball was projected upward with an initial velocity of 88ft/sec(vo=88). When will the ball be 120 ft above the ground?
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Question 138363: During the2008 Masters Tournament, Tiger Woods ball was projected upward with an initial velocity of 88ft/sec(vo=88). When will the ball be 120 ft above the ground? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! During the2008 Masters Tournament, Tiger Woods ball was projected upward with an initial velocity of 88ft/sec(vo=88). When will the ball be 120 ft above the ground?
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h(t) = -16t^2 + 88t
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Let the height be 120 and solve for "t":
-16t^2+88t = 120
-16t^2 + 88t - 120 = 0
-2t^2 + 11t - 15 = 0
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2t^2-11t+15 = 0
t = [11 +- sqrt(121 -4*2*15)]/4
t = [11 +- sqrt(1)]/4
t = 3 or t = 5/2
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The ball will be at or above 120 feet between t= 2.5 seconds and 3 seconds
of its flight path time.
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Cheers,
Stan H.
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