You are given a thin rod of length 1.8 m and mass 2.8 kg, a small lead weight of 0.60 kg, and a not-so-small lead weight of 1.0 kg. The rod has three holes, one in each end and one through the middle, which may either hold a pivot point or one of the lead weights. How do you arrange these objects so that the resulting system has the maximum possible moment of inertia? What is that moment of inertia (in kg · m^2)?
A person is standing on a section of uniform scaffolding as shown in the figure. The section of scaffolding is L = 1.50 m in length, has a mass ms = 30.0 kg and is supported by three ropes as shown. Determine the magnitude of the tension in each rope when a person with a weight of Wp = 860 N is a distance d = 0.700 m from the left end.
Magnitude of T1: [T1]
Magnitude of T2: [T2]
Magnitude of T3: [T3]