Homework Help: physiC

Posted by lina on Tuesday, March 1, 2011 at 11:23am.

A uniform door (0.81 m wide and 2.1 m high) weighs 150 N and is hung on two hinges that fasten the long left side of the door to a vertical wall. The hinges are 1.9 m apart. Assume that the lower hinge bears all the weight of the door.

Determine the magnitude and direction of the force applied by the door to the upper hinge.

Find the magnitude and direction of the horizontal component of the force applied to the door by the lower hinge.

determine the magnitude and direction (below the horizontal) of the force applied by the door to the lower hinge.

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