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A 45kg child swings in a swing supported by two chains, each 5.0m long. The tension in each chain at the lowest point is

A 45kg child swings in a swing supported by two chains, each 5.0m long. The tension in each chain at the lowest point is 400N. Find the child's speed (in m/s) at the lowest point. Select one: O a. 5.22 O b. 5.91 O c 5.58 O d. 6.54 O e. 6.24

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