Person A

Person A
Person B
A is walking toward B at a rate of three miles per hour
And B is walking toward A at a rate of two miles per hour
How fast is B perceive A to be walking?
Newton's first law of motion
A body in a state of uniform motion
Will remain in that state of motion
Unless an external force is applied to it
I am standing still, on the earth
The earth spins at a rate of 1,070 miles per hour
The earth orbits the sun at a rate of 67,000 miles per hour
The sun travels through the galaxy at a rate of 490,000 miles per hour
I am not standing still!
"When you're courting a nice girl, an hour seems like a second.
When you sit on a red-hot cinder, a second seems like an hour.
That's relativity."
- Albert Einstein
Newton's second law of motion
A change of motion is proportional to
And is made in the direction of the force applied
Person A
Person B
If A's position is seven miles from B
And A is walking at a rate of four miles per hour
And B is walking at a rate of five miles per hour
At a forty-five degree angle to the path of Person A
How soon will they meet?
And how will the path of each person be altered by that contact?
If a tree falls in the forest-
Newton's third law of motion
To every action there is an equal and opposite reaction
-And no one's there to hear it-
"Only a life lived for others is a life worthwhile."
- Albert Einstein
-Does it--
I'm rubber and you're glue
What you say bounces off me and sticks to you
I exist only if observed
I am nothing without you!