Newtons 2nd Law

Write newtons second law

The accelleration of an object is directly proportional to the net force acting on the object, inversely proportional to the objects mass and in the direction of the net force

What are two definitions to describe force

1. Anything that can cause a chnage in motion 2. The resistance and object offers to a change in motion

What is another word to express Newtons

1kgms2

what is the equation for force in newtons second law

f mxa

what is one newton

the amount of force nessesary to give a 1kg object an accelleration of 1ms2

What are the types of forces presented in class

Weight, normal force, thrust, drag, friction, tension, air resistance

What is a net force

The sum of all forces acting on an object

What is known about the accelleration of vertical horizontal forces

vertical forces have vertical acceleration and horizontal forces have a horizontal acceleration

Why do all object accelerate at the same rate in a state of free-fall

While in a state of free fall, the only force acting on an object is its weight. A more massive object experiences greater weight, which increases inertia, while a smaller object experiences less weight and less inertia. These effects balance out, causing both objects to fall at the same rate

What two thing affect an objects acceleration

net force and mass

R∼v²

As the velocity of an object increases, the air resistance increases at a much faster rate

R∼a

This suggests that air resistance increases directly with the acceleration of the object.