A porter governor, its central load is 18 kg and the weight of each ball is 2 kg. The top arms are 25 cm while the bottom arms are each 30 cm long and all arms pivoted on the axis of rotation. The friction of the sleeve is 14 N. If the top arms make 45 ° with the axis of rotation in equilibrium position, find the speed of the governor at t

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Q: 12.5

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