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Posted by on Friday, October 5, 2012 at 11:09am.

Tarzan swings on a vine 6.8 m long. The tension in the vine is 1200 N if he's moving at 2.9 m/s when the vine is vertical. What is his mass?

  • Physics - , Friday, October 5, 2012 at 2:01pm

    ma= T-mg
    a=v²/L
    m(a+g)=m(v²/L +g)=T
    m=T/(v²/L +g)=
    =1200/(2.9²/6.8 + 9.8)=13244 N

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