Two children of mass 21 kg and 31 kg sit balanced on a seesaw with the pivot poi

Question

Two children of mass 21 kg and 31 kg sit balanced on a seesaw with the pivot point located at the center of the seesaw. If the children are separated by a distance of 4 m, at what distance from the pivot point is the small child sitting in order to maintain the balance? Two children of mass 21 kg and 31 kg sit balanced on a seesaw with the pivot point located at the center of the seesaw. If the children are separated by a distance of 4 m, at what distance from the pivot point is the small child sitting in order to maintain the balance?

Explanation / Answer

Torque should be balance anout the pivot

=> m1gr1 = m2gr2

=> 31*4 = 21*r2

=> r2 = 5.90 m

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