5. Figure 2.31 shows how the velocity of four cars changed as they

travelled along a straight road. Give reasons for your answers to
these questions:
(a) Which car was travelling at a steady speed?
(b) Which car was decelerating?
(c) Which car had the greatest acceleration?

End of unit questions grade nine

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Figure 2.31show

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Answer

Did you know?

Did you know that the velocity of cars can vary while travelling along a straight road? In Figure 2.31, four cars are depicted, each with a different velocity pattern. By analyzing this information, we can determine interesting facts about the cars' movements. (a) It is vital to identify the car that was traveling at a steady speed. Analyzing the graph, we can find a car with a constant velocity, indicating steady speed. (b) Another interesting point is recognizing the car that was decelerating, i.e., slowing down. By observing the graph, we can locate a car with a decreasing velocity over time, indicating deceleration. (c) Lastly, we can identify the car with the greatest acceleration, which signifies the vehicle that experienced the most significant change in velocity. Analyzing the graph, we can identify a car with a steeper slope, indicating higher acceleration. Understanding these concepts can provide valuable insights into the behavior of cars on the road and the factors influencing their velocity changes.