* Non coplanar forces are forces action in in different plane .

* Newton's First Law of Motion which helps us to define a force

as an external agency which tends to change the state of rest or

of uniform motion of a body.

2. NON-COPLANAR FORCES

Resolution and Composition:

Consider a force F acting at 0. Assume a system of rectangular co-or-dinates

x, y and z with ‘o’ as the origin. To determine the direction of the force,

let us construct a parallelepiped (say ‘box’) as shown in Figure a.

2. NON-COPLANAR FORCES

Resolution and Composition:

2. NON-COPLANAR FORCES