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 N and is hung on two hinges that fasten the long left side of the door to a vertical wall. The hinges are 2.1 m apart. Assume that the lower hinge bears all the weight of the door. Find the magnitude and direction of the horizontal component of 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!!