Physics - Dynamics

The first important thing about dynamics in Physics is Newton's laws of motion. This three laws of motion describe the properties that pertain to motion.

The first law of motion as stated by Newton is that an object will not change its motion unless a force acts on it, also known as an inertia. | * An object's inertia is its resistance to changing in motion.

The second law of motion states that the force on an object is equal to its mass times acceleration. This is also known as the equation F=ma. | You can substitute the values of F=ma for other things later on, as well as being a good rearrangable equation

And the last third law of motion states that when two objects interact, they apply forces to each other of equal magnitude and opposite direction. | In other words forces have equal and opposite reactions when applied to an object.

These three laws of motion are very crucial and show up very often in Physics.

Forces are the main aspect of dynamics

Some notes about force are:

Force is a vector

Forces have vertical and horizontal components

When net forces acting on an object is more than zero then the object will accelerate in the direction of the net force.

When the net force of an object is zero then it will continue in its motion at a constant velocity. If its at rest then it'll stay at rest

Different types of force: Normal, applied, tension, gravitational, frictional, contact, and electric.