physics

A man opens a 1.19-m wide door by pushing on it with a force of 54.5 N directed perpendicular to its surface.
(a) What magnitude torque does he apply about an axis through the hinges if the force is applied at the center of the door? ___N · m

(b) What magnitude torque does he apply at the edge farthest from the hinges? ___N · m

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