A door of mass 
kg that is 2 m high and 1 m wide is hung from
two hinges located 20 cm from the top and bottom, respectively.
Assuming that the weight of the door is equally distributed between
the two hinges, find the total force (magnitude and direction) exerted
by each hinge. (Neglect the mass of the doorknob. The force
directions drawn for you are NOT likely to be correct or even
close.)