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schepotkina [342]
2 years ago
15

25. How long does it take a child on a swing to complete one swing if her center of gravity is 4.00 m below the pivot?

Physics
1 answer:
Lina20 [59]2 years ago
4 0
  • Length=l=4m

\\ \rm\rightarrowtail T=2\pi\sqrt{\dfrac{l}{g}}

\\ \rm\rightarrowtail T=2\pi\sqrt{\dfrac{4}{9.8}}

\\ \rm\rightarrowtail T=2\pi(0.63887)

\\ \rm\rightarrowtail T=1.27774\pi

\\ \rm\rightarrowtail T=4.012s

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