In: Physics
1. A rod of uniform density and weight W=120N has length L=1.00 m and is supported at two points, under the 10 cm point and under the 70 cm point. The support at 10 cm exerts a force NL on the rod and the support at 70 cm exerts a force NR on the rod, both forces being in the vertical direction.
(a) Use the conditions of static equilibrium to find the values of NL and NR.
(b) In order to apply the torque condition you needed to choose an axis about which to calculate the torques. Try choosing a different axis--do you get the same results for NL and NR?