Newton’s Laws

What you need to know:
Newton proposed 3 “Laws”
1] Inertia: An object at rest tends to remain at rest unless acted on by an eternal force. An object in motion tends to remain in motion unless acted on by an external force.
2] Force and Mass: Remember the equation F = ma where F is the force {in units of Newtons – what else could it be?}, a is acceleration and m is an experimentally determined constant of proportionality for an object. m is called the mass.
3] Law of reaction: For every action there is an equal and opposite reaction.

Easy to remember examples:
1] A body in motion, stays in motion…
2] Here’s a joke: A Physicist walks into a bar, and he says…….. “F = ma”
that’s it, pretty funny eh?
3] Push someone and they’ll push back.