lA particle is in equilibrium under the simultaneous action of three forcesp ⃑, q ⃑ and r ⃑. If these three vectors forms the sides of a triangle whose opposite angle are Ɵ,β and ϒ. Prove that each force bears a constant ratio with the sine of the angle between the other two
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When only three forces act on an object this closed figure is a triangle. This leads to the triangle law for three forces in equilibrium: Triangle Law for Three Forces in Equilibrium: Three forces in equilibrium can be represented in magnitude and direction by the three sides of a triangle taken in order.
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