Based on the time measurements in the table, what can be said about the speed of the car on the lower track as compared to the higher track? A. Cars travel faster on the lower track.
B. Cars travel faster on the higher track.
C. There is no difference in speed.

How can the reasoning for the above answer be best explained? On the higher track, the elapsed time is

A. shorter
B. longer
C. equal
.

Calculate speeds for each track. How much faster was the car on the higher track than the lower track?

A. 0.56 m/s
B. 1.54 m/s
C. 3.50 m/s

the total distance traveled by the car is

30km + 49km = 79 km .

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