Question

On a seesaw two childrens of masses 30kg and 40kg sitting on one side of it at distances of 2m and 2.5m respectively from its middle point. Where should a man of 74kg sit to balance it?
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Answer 1

Answer:

Let the two children be sitting on the left arm. They will produce anti-clockwise moment due to their weights about the middle point. Total Anti-clockwise moment = 30kgf × 2m + 50kgf × 2.5m = 60kgfm + 125kgfm = 185kgfm To balance it, the man should sit on the right arm (to produce clockwise moment). Let his distance from the middle be x m. Then Read more on Sarthaks.com - https://www.sarthaks.com/276222/ona-see-saw-two-children-masses-30kg-and-50kg-are-sitting-one-side-distance-and-respectively

Answer 2

Answer:

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