Students are designing a balloon-powered car to test the effect of wheel size on the speed of the car. The size of the balloon is kept constant In each trial. The results of three trials are shown in the chart. Large Wheel Car Small Wheel Car Small Wheel Distance (m) Time (s) 5.0 20.8 Large Wheel Distance (m) Time (s) 5.0 17.1 Trial 1 Trial 2 Trial 3 5.0 21.1 5.0 16.8 5.0 20.9 5.0 17.0 What is the average speed for the small- and large-wheeled cars? A 0.2 m/s (small), 0.3 m/s (large) C. 4.0 m/s (small), 5.4 m/s (large) B. 0.7 m/s (small), 0.9 m/s (large) D. 100.0 m/s (small), 85.0 m/s (large)
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Students are designing a balloon-powered car to test the effect of wheel size on the speed of the ca...
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