Physics

A 29 kg child sits in a swing supported by two
chains, each 4.2 m long.
If the tension in each chain at the lowest
point is 213 N, find the child’s speed at the
lowest point. (Neglect the mass of the seat.)
Answer in units of m/s.

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asked by Joe
  1. child weight (w) = 29 g

    centripetal force = m v^2 / r = (2 * 213) - w

    solve for v

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    posted by R_scott

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