Question

what are newtons three laws ?give an example of each ?

Answer 1

straight line, curve, and stops I believe

Answer 2

or is it equal and opposite for the 3rd?

Answer 3

This question belongs in Physics.

But you can find the definitions and examples of all three here:

http://en.wikipedia.org/wiki/Newton%27s_laws_of_motion

You might also find the linked videos in the wikipedia article worth watching.

Answer 4

1st law
If the sum of the resultant forces on an object is equal to zero, then the object stays at rest or continues to move in a straight line at a constant velocity

2nd law
If the resultant forces on a object are not zero, then an object of mass m will move with an acceleration a in such a way that F=ma.

3rd law
Every action has an equal and opposite reaction