Newton's First Law.

That's Newton's First Law.

Newton's law of gravitation.

So you really have to give Galileo credit for Newton's first law

This is Newton's 1st law

This is absolutely true. This is actually another way of rephrasing Newton's First Law.

So Newton's third law is saying,

So this Newton's first law, and I think I should do a little side here

Well the reason is that Newton's first law is really just a restatement of this guy's law of inertia

That's what Newton's second law gives us.

In this video, I want to talk a little bit about Newton's first law of motion,

There's just no way around Newton's third law.

We'll start with something very simple Newton's Law

Well, the answer is explained by Newton's Second Law.

We're now ready for Newton's third law of motion.

Newton's first law says that an object at rest will stay at rest unless acted on by an external force.

Newton's First Law of Motion deals with inertia, which is the resistance to a change in its state of motion.

And if this is Newton's first law then why do I have this huge picture of this guy over here?

Newton's second law describes the transfer of energy for impulse turbines.

Using Newton's second law of motion, Force is mass times acceleration.

So that gives you at least the sensory clue of Newton's 3rd Law.

So Newton's Second Law of Motion. This one is maybe the most famous.

We'll start with something very simple Newton's Law The force equals mass times acceleration.

It turns out that newton's third law also applies to rotational force called 'Torque'.

According to Newton's Third Law, for every action, there is an equal and opposite reaction.

So where is this equal and opposite force that's Newton's 3rd Law tells us about?

Newton's three laws of motion the first law of motion says that objects in motion stay in motion forever unless acted upon by an outside force.

In mathematical terms, Newton's Second Law says that force is the product of mass times acceleration.

This is maybe the most famous example of, Newton's third law, is just how rockets work.

Newton's Laws of Motion.

We happen to get round to testing, let's say, Newton's Law of Gravity about 300 years ago.

We happen to get round to testing, let's say, Newton's Law of Gravity, about 300 years ago.

Newton's 3rd Law tells us that to every action there is always a equal and opposite reaction.

Newton's third law tells us that the air applies in an equal amp opposite reaction force on the propeller.

Was Newton's theory of gravity wrong?

We use Newton's Laws of Gravity.

Using Newton's second law (with a sign convention of we can derive a system of equations for the acceleration ( a ).

First Law

Newton's first law tells us that an object at rest will stay at rest and an object with a constant velocity will keep having that constant velocity unless it is affected by some type of net force.

All of that could be described using Newton's work.

And it is this force, which is applied by your legs pushing down on the pedals, that allows you to overcome Newton's Law of Inertia.

We can keep going, i mean the fun or the complicated thing about Newton's 3rd Law is that every force has the equal opposite force.

If Newton's 3rd Law wasn't true you wouldn't even feel the ball, you wouldn't even have the ball compressed against the skin of your palm.

Well, Newton's first law says, they are going to either keep their constant velocity or stay stationary, which is a constant velocity of zero unless there is some unbalance, unless there is some net force acting on an object.

So Newton's first law you're going to have your constant velocity ...it could be zero... it's going to stay being that constant velocity unless there's some net force that acts on it. so that leads to the natural question