Introduction to Particle Dynamics

In the previous topics we only talked about equilibrium in static, stationary objects. During this unit we will be talking about particle dynamics.

For the purpose of this unit, when I say the word "Particle" I am referring to an object that has a mass but no direction.

The Kinematics are the study of a position or displacement, velocity and acceleration without mentioning the agent responsible.

Kinetics, are the study of motion together with the agent responsible (Force/Movement).

Shear Force Example (Intermediate - Hard)

This example for Shear Force and Bending Moments is going to be a lot more complex than the previous with the addition of calculating the Maximum Bending Moment. This is all fitted on a single piece of paper so the working out can be a lot less than shown.

Equilibrium Exam Examples

1) In using the pliers shown in Figure 1 below, 150 N forces are applied to each of the handles.

Equilibrium (Theory)

Equilibrium is the sole reason behind the static unit, Equilibrium is the forces that make an equal and opposite reaction to keep the beam, wall, arm etc where is is without moving. It is extremely important to get an understanding of "Free Body Diagrams" and also to understand which element you want to focus on within the object.