PPT Slide
Velocity from an x-t graph or x(t) function
Average velocity involves two
points in space and two points in time.
It is the displacement divided by time.
Graphically, it is the slope
between two points on an x-t graph
Instantaneous velocity contains information
about the velocity at every moment in time.
Graphically, it is the tangent slope at a point
on an x-t graph. Mathematically, it is the
derivative of x(t). Lets you generate v-t graphs
“I drove 100 miles south in two hours, what was my average velocity?”
(no details contained in average velocity about traffic jams,
lunch stops, doubling back etc.; answer: 50 miles/hr south)