# What are Newton's three laws of motion?

There are three Newton's laws of motion are: an object at rest will remain at rest unless acted on by an unbalanced force; acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object). The final law is, for every action there is an equal and opposite re-action.
Q&A Related to "What are Newton's three laws of motion?"
 1. a body continues to be in state of rest or uniform motion until it is acted upon by an external force. 2. for every action, there is equal a n opposite reaction. http://wiki.answers.com/Q/Identify+newtons+three+l...
 1.Every object in a state of uniform motion tends to remain in that state of motion unless http://www.chacha.com/question/what-are-newton's-t...
 If you speak of a proof in a mathematical sense, then you always have to consider from which assumptions you want to prove something. If you assume conservation of momentum and Newtons http://www.quora.com/Physics/What-is-the-proof-of-...