Different motions of the graph which corresponds to the motion of the car descri

Question

Different motions of the graph which corresponds to the motion of the car described in each statement. car are described below. Choose the letter (A to G) of the acceleration-time n once or not at all. If you think that none is correct, answer choiceJ c o Time c o C A Time Time None of these graphs is correct. Time 22. The car moves toward the right (away from the origin), speeding up at a steady rate. 23. The car moves toward the right, slowing down at a steady rate. 24. The car moves toward the left (toward the origin) at a constant velocity The car moves toward the left, speeding up at a steady rate. The car moves toward the right at a constant velocity. 26.

Explanation / Answer

22. As the car is speeding up at a steady rate, it implies that the is constant, while the velocity is increasing.

Thus graph A shows this situation.

23. Car is traveling towards right and slowing down at a steady rate. This means that the acceleration is negative, yet constant. Thus, Graph B shows this situation.

24. Car moves towards the origin at a constant velocity. As the velocity is constant, acceleration must be zero. Therefore, plot C depicts this situation.

25.The car moves towards left, speeding at a steady rate. The direction of the movement of the car does not affect the acceleration-time plot. Thus, similar to the case 22., plot A shows this situation.

26. As the car is moving at a constant velocity, acceleration is zero. Yet again, the direction of the car movement does not make a difference. Thus, C shows this plot.

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