Tuesday, April 26, 2011

Newton's laws, but not much else

Unfortunately, I wasn't able to get much work done today.  I reviewed Newton's three laws of motion and started reviewing particle kinematics.

I don't want to end the post there, so I'm going to tack on the three laws:

Law I
An object at rest stays at rest, and an object in motion stays in motion in the same direction and with the same speed as long as there is no net external force acting on the object.

Law II
The rate of change of the velocity of an object is directly proportional to the net external force acting on the object and inversely proportional to the mass of the object.  a = F/m

For every force acting on an object there is an equal and opposite reactive force.

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