According to Lami's Theorem, if three coplanar forces P, Q, R acting at a point are in equilibrium, then:

Type: MCQ • Marks: 1

A. P + Q + R = 0 (scalars)

B. P / sin α = Q / sin β = R / sin γ

C. P sin α = Q sin β = R sin γ

D. P / cos α = Q / cos β = R / cos γ

Explanation

Lami's Theorem: Each force is proportional to the sine of the angle between the other two forces.

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