Question

answer these questions about the graph on the above.
a. how many total miles did the car travel?
b. what was the average speed of the car for the trip? (hint: total distance)
c. describe the motion of the car between hours 5 and 12?
d. what is happening between points c and d?
e. how many miles were traveled in the first two hours of the trip?
f. between which two points is the fastest speed?

Explanation:

Step1: Find total distance

Read from the graph, assume the starting - point is at 0 miles and the ending - point is at 200 miles. So the total distance $d = 200$ miles.

Step2: Find total time

The total time of the trip $t=25$ hours.

Step3: Calculate average speed

The formula for average speed is $v=\frac{d}{t}$. Substitute $d = 200$ miles and $t = 25$ hours into the formula, we get $v=\frac{200}{25}=8$ miles per hour.

Answer:

8 miles per hour