Three forces acting on a particle are in equilibrium. the angles between the first and second is 90* and that between the second and third is 120*. find the ratio of forces.

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Three forces acting on a particle are in equilibrium. the angles between the first and second is 90* and that between the second and third is 120*. find the ratio of forces.

Jayanarayan hota 18th Apr, 2020

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Answer (1)

Harsha Sinha 18th Apr, 2020

It means the third angle would be 150 hence using lamis theorem the ration is

F1/sin120=F2/sin150=F3/sin90

Solving this you will get F1:F2:F3 = √3:1:2

I hope this help.

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