engineering recuitment Punjab SSSB Jr Draftsman Civil Mock Test 2021 Engineering Mechanics Equilibrium and Friction Equilibrium
If three forces, acting at a point, be in equilibrium then each force is proportional to the sine of the angle between the other two. This theorem is called
1
Law of triangle of forces
2
Law of parallelogram of forces
3
Lami's theorem
4
Trigonometrical theorem