1. The data table below shows the speed of each car recorded at each second. Use the data table to look for patterns that will help you answer the questions below. a) Which car(s) travelled at a constant speed? Which car(s) accelerated? (Multiple answers needed) 1. b) Which cars had an average speed of 2 m/s? *
Your answer
1. c) Which had the greatest acceleration? *
Your answer
1. d) Which cars traveled the farthest? *
Your answer
2. A roller coaster car is traveling 1 m/s at the top of the track. At the bottom of the track, 5 seconds later, it is traveling 36 m/s. What is its average acceleration? *
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4. Which equation would you use to find the acceleration of an automobile whose speed decreases from 48 m/s to 4 m/s in 11 seconds? *
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(48 m/s – 4 m/s) / 11 s = 4 m/s^2
(48 m/s + 4 m/s ) / 11 s = 4.7 m/s^2
(4 m/s – 48 m/s) = - 44 m/s
(4 m/s – 48 m/s) / 11 s = - 4 m/s^2

6. Two students noted that the acceleration of a car was -40 km/s^2. The first student said, “That can’t be right. You can’t have a negative acceleration.” The second student said, “That can’t be right. You can’t have s^2.” What would you say to each student to help them better understand how acceleration is described? *
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