A thin rod of length 8.5 m and mass 23 kg is supported at a 37? incline. One support is 2.1 m and the other is 7.9 m from the lower end of the rod. Friction prevents the rod from sliding o? the supports.
a.) Find the normal force exerted on the rod by the lower support. The acceleration of gravity is 9.81 m/s^2.
b.) Find the normal force exerted on the rod by the upper support.