Problem 151. One end of a rod of mass 1 kg andof length 1 m can freely rotate about a lixed horizontalaxis. Initially the rod makes an angle of 30° to thehorizontal. A thread of length 1.3 m is attached t0 the(wo ends of the rod. A small pulley can run withoutfriction along the thread, and a weight of mass 0.2 kg issuspended on the axis of the pulley.Determine the work needed to lit the rod to ahorizontal position. (Use the value g= 10 m/s? for theacceleration due to gravity.)30°1 m

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Answered: Problem 151. One end of a rod of mass 1…

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