Copyright © Michael Richmond.
This work is licensed under a Creative Commons License.
Question 1:
Is Joe's velocity v constant?
Answer: no, velocity is a vector quantity. Since the direction
of Joe's velocity is constantly changing,
his velocity is also constantly changing (even though
the magnitude of his velocity is always the same).
Question 2:
Is Joe's acceleration a constant?
Answer: no, acceleration is a vector quantity. Since the
direction of Joe's acceleration is constantly
changing, his acceleration is constantly changing --
even though the magnitude of his acceleration is
always the same:
(40 m/s)^2
magnitude of acceleration = ------------- = 2.3 m/s^2
700 m
Copyright © Michael Richmond.
This work is licensed under a Creative Commons License.