How it works ?
Recall that VELOCITY is a vector quantity (quantity having both MAGNITUDE and DIRECTION).
SPEED, on the other hand = | VELOCITY |, thus always making it a non-negative quantity.
Thus, there are times when velocity can be negative.
The following graph and table provides information with respect to a person driving away from home.
Let t = the number of hours that have passed.
Let d = this person’s displacement from home.
Study the graph and table carefully. (They display the same information.)
Then, answer the questions that appear below the applet.