Question: A person opens a door by applying a 15-N force perpendicular to it at a distance 0.90 m from the hinges. The door is pushed

A person opens a door by applying a 15-N force perpendicular to it at a distance 0.90 m from the hinges. The door is pushed wide open (to 120o) in 2.0 s.
(a) How much work was done?
(b) What was the average power delivered?

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