An athlete holds a 32.8 N pole in equilibrium by exerting an upward force U with her left hand and a downward force D
with her right hand as shown. Point C is the centre of gravity of the pole. (Let L1 = 2.25 m, L2 = 1.35 m, and L3 = 0.900 m. Due to the nature of this problem, do not use rounded intermediate values in your calculations—including answers submitted in WebAssign.)