SOLUTION: The period T (time in seconds for one complete cycle) of a simple pendulum is related to the length L (in feet) of the pendulum by the formula 8T^2= pie^2L. If a child is on a swin

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Question 67191: The period T (time in seconds for one complete cycle) of a simple pendulum is related to the length L (in feet) of the pendulum by the formula 8T^2= pie^2L. If a child is on a swing with a 10-foot chain, then how long does it take to complete one cycle of the swing?
Answer by 303795(602) About Me  (Show Source):
You can put this solution on YOUR website!
8T%5E2=+pi%5E2L
T%5E2=+pi%5E2L%2F8
T=+sqrt%28pi%5E2L%2F8%29
If L=10 then
T=+sqrt%28pi%5E2L%2F8%29+=+sqrt%28pi%5E2%2A10%2F8%29
T=+sqrt%2812.337%29
T=3.5 seconds