Forest PHYS100 Chapt2

Chapt 2 Motion

Newton's Principia published in 1687 ( in latin and then 1726 in english).

Average speed

Average speed [math](s)[/math] is the ratio of your DISTANCE [math](d)[/math] divided by the time [math](t)[/math] to travel that distance.

[math]\mbox{Average Speed} = \frac{\mbox{Distance}}{\mbox{Time}}[/math]

We can write a formula to express the definition of speed using the above abreviations for speed, distance, and time

[math]\bar s = \frac{d}{t}[/math]

Instantaneous speed

Speed at a given instant in time.

Graphing Motion

Forest_PHY100