A 5 kg beam is 20 cm long and has a uniform density. It is balanced on two points as shown.
a. Draw an extended free body diagram, showing where each force acts. There will be three forces acting on the beam.
b. Use sum of torques to find the normal force acting on the block at the right-hand point in a single equation. As part of your answer, state what you chose as your pivot point and why.
c. Use the sum of forces, along with your answer to part (b), to find the normal force acting on the block at the left-hand point. Give your answer in newtons.