frame of reference
the symbol “D”
What is meant by the term “one dimensional”?
What is meant b the term “at rest”?
What is meant by positive and negative
If you travel from Fort Worth to Houston
(290 miles) in 5 hours, what is your average velocity? Does that
mean that you travel that velocity the entire time? Explain.
Distinguish between speed and velocity.
Consider a position – time graph:
a. What are the units on the axes?
b. How do you calculate slope of a line?
c. What would the units of the slope be?
d. What does the slope represent?
e. What is indicated by a positive versus
a negative slope?
f. What is indicated by a straight versus
a curved line?
What is meant by the term “tangent line”?
Consider the curved line in figure 2-7.
What happens to the slope of the tangent line as time increases? What does
this tell us about the velocity?
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