What is the height of a flag pole?
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You throw a ball straight up in the air to determine the height of a flag pole. You notice that the ball goes by the top of the pole at 0.5 seconds and then reaches the top again after an interval of 4.1 seconds. How high is the flag pole from the point where the ball is launched.
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Answer:
Height=-1/2(g)t^2 +V(0)t, Height=-4.9(4.1)^2+V(0)(4.1)= =4.1V(0)-81.369 Height=-4.9(0.5)^2+V(0)(0.5)= =0.5V(0)-1.225 Height=Height =========> 4.1V(0)-81.369=0.5V(0)-1.225 V(0)=22.26 m/sec, Height=9.9 meters God bless you.
John D at Yahoo! Answers Visit the source
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