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Posted by on Saturday, February 18, 2012 at 4:21pm.

A 32.2-kg child swings on a rope with a length of 6.06 m that is hanging from a tree. At the bottom of the swing, the child is moving at a speed of 4.2 m/s. What is the tension in the rope?

  • physics - , Saturday, February 18, 2012 at 5:15pm

    force up on child = T
    force down on child = mg

    net force up on child F = T-mg
    F = m a
    T - mg = m (v^2/R)

    T = m (g + v^2/R)

  • physics - , Sunday, February 19, 2012 at 11:21am

    Thnks :)

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