Chapter 1.1
Vectors and Motion Along a Line
A speedometer says 60 and a GPS says −60, and neither is wrong. On a line, a minus sign does the whole job of an arrow.
free · lesson 1 of 18
By the end
- 01Distinguish scalars from vectors and add vectors along a line by signed arithmetic
- 02Treat a moving object as a point and compute displacement, average velocity, and average acceleration
- 03Explain instantaneous velocity as an average over a very small interval
- 04Show that an object can accelerate while its speed is constant or momentarily zero