Question

48. Three forces P, Q and R are acting on a particle in the
plane, the angle between P and Q and that between Q and
Rare 150° and 120° respectively. Then for equilibrium,
forces P, Q and R are in the ratio
(a) 1:2:3
(b) 1:2:√3
(c) 3:2:1
(d) √3:2:1​

Answer 1

answer will be b I think so