Question

Two forces of magnitude 3N and 6N are acting on a body simultaneously with making an angle of 150° with each other. Find the magnitude and direction of resultant force?

Answer 1

here two vectors are acting so we. use here vector multiplication
A×B Sin150
= 6 × 3 × Sin150
= 18 × (√3)/2
= 9√3.

Answer 2

9√3 will be the magnitude of force and and displacement act in opposite direction