How do you find cumulative effect of two or more forces acting on an object

Cumulative effect of two or more force can be found using Vector sum of all forces

Explanation:

Force is a vector quantity and in order to find the resultant of two or more forces we have to use the concept of vector addition

here we know that vector addition rule is given as

here we know that

= angle between two forces

so using this equation we can find the cumulative effect of two forces which are inclined at an angle with respect to each other