Graph 1
Graph 2
Graph 3
Graph 4
Correct
In principle, you could also just compute and plot the average velocity. The expression for the average velocity is
2BWH<0 0 >
4 0004 0 .
The notation 2BWH<0 0 > emphasizes that this is not an instantaneous velocity
Dimensions of Physical Quantities
Learning Goal:
To introduce the idea of physical dimensions and to learn how to find them.
Physical quantities are generally not purely numerical: They have a particular dimension or combination of dimensions associated
w
Average Velocity from a Position vs. Time Graph
Learning Goal:
To learn to read a graph of position versus time and to calculate average velocity.
In this problem you will determine the average velocity of a moving
object from the graph of its position 4
There are about 300 million people in the United States. The distance between the tips of a person's outstretched hands is
roughly equal to the height of the person. Counting children, we estimate the average palmtopalm distance as one meter.
Since the eq
Cost of fuel =
383
Correct
Part B
How many gallons of fuel would the rental car consume per mile?
Express your answer numerically in gallons per mile to three significant figures.
Hint 1. How to approach the problem
Begin with writing the consumption rate
Hint 1. How to approach the problem
Recall your results found in the previous parts, namely the fact that the instantaneous velocity of the particle is
constant. Which graph represents a variable that always has the same constant value at any time?
ANSWER