1.Point loads - concentrated forces
exerted at point or location
2.Distributed loads - a force applied
along a length or over an area. The
distribution can be uniform or non-uniform.
Resultant
Forces-
If
two forces P and Q acting on a particle A may be
replaced by a single force R, which has the same effect on the
particle.
Resultant
Forces-
- This force is called the resultant of the forces P and Q and may be obtained by constructing a parallelogram, using P and Q as two sides of the parallelogram. The diagonal that pass through A represents the resultant.
- This is known as the parallelogram law for the addition of two forces. This law is based on experimental evidence,; it can not be proved or derived mathematically.
- For
multiple forces action on a point, the forces can be broken into the components of x and y.
