(adsbygoogle = window.adsbygoogle || []).push({}); I Need Some Help Plz !!!

Hi, I am needing some serious help on understanding the following question:

A uniform door (0.81 m wide and 2.1 m high)weighs 140 Nand ishung on two hinges that fasten the long left side of the door to a vertical wall.The hinges are2.1 m apart.Assumethat the lower hinge bears all the weight of the door. Find themagnitude and directionof thehorizontal componentof the force applied to the door by(a ) the upper hinge and (b ) the lower hinge. Determine the magnitude and direction of the force applied by the door to (c ) the upper hinge and (d ) the lower hinge.

I have the answer in front of me from the answer book but I am having trouble understanding how they came to the final conclusion.

CAN SOMEONE EXPLAIN HOW THIS IS ANSWERED. I WILL BE FOREVER VERY GRATEFUL!!

Thank you very much!!

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# Homework Help: I Need Some Help Plz

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