Physci 051 Newton's laws of motion
Channel: Dana Lee Ling
Date: 2020-08-09

A brief introduction to Newton's three laws of motion:
First: When the change in momentum is zero:
An object at rest tends to remain at rest, an object in motion tends to remain in motion, unless acted upon by an external force.
Second: When there is a non-zero change in momentum:
The change is momentum is proportional to the applied external force. Depending on the choice of units, the external force is equal to the change in momentum.
Third: For every force there is an equal and opposite counterforce.
http://www.comfsm.fm/~dleeling/physci/
http://www.comfsm.fm/~dleeling/physci/text/text6.html#page-051