SOLUTION: pls help me to answer. a ball drops from a height of 120 dc. if each tie it strikes the ground it bounces 3/4 of the height from which it drops, what is the total distance it has t
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Question 915801: pls help me to answer. a ball drops from a height of 120 dc. if each tie it strikes the ground it bounces 3/4 of the height from which it drops, what is the total distance it has traveled by the time it comes t rest?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
pls help me to answer. a ball drops from a height of 120 dc. if each tie it strikes the ground it bounces 3/4 of the height from which it drops, what is the total distance it has traveled by the time it comes t rest?
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120 + 120(3/4) + 120(3/4)^2 + ....
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Geometric Series with a = 120 and r = (3/4)
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Sum = a[1/(1-r)] = 120[1/(1/4)] = 120*4 = 480 dc
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Cheers,
Stan H.
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