Which line has no acceleration?

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Question

Which line has no acceleration?

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BlackTom AI · Accepted Answer

Question: Which line has no acceleration?

Option B: The line corresponding to B appears to have a positive slope, meaning velocity changes with time. Since acceleration is the rate of change of velocity, a nonzero slope indicates nonzero acceleration. Therefore, B does not have zero acceleration.

Option C: The line for C is drawn horizontally, indicating constant velocity over time. A constant velocity means the rate of change of velocity is zero, so the acceleration is zero. This makes C a candidate for having no acceleration.

Option A: The line for A shows velocity increasing steadily with time (positive slope). A steadily increasing velocity implies a constant, nonzero acceleration (positive), so A certainly does not have no acceleration.

Option D: The line for D slopes downward, showing velocity decreasing with time. A decreasing velocity corresponds to a negative acceleration (nonzero), so D also has nonzero acceleration.

Summary: Among the given options, only the horizontal line (C) maintains constant velocity, which corresponds to zero acceleration. The other lines all have slopes, which indicate nonzero acceleration.

FFP001 Threshold Quiz 3 | LA009

Which line has no acceleration? If you cannot view this image, click here.

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FFP001 Threshold Quiz 3 | LA009

Which line has no acceleration? If you cannot view this image, click here.

查看解析

登录即可查看完整答案

类似问题

The figure shows the v-t graph of a truck moving on the road. The distance travelled in the first 8 seconds is

The graph shows the speed of a car travelling along a road during heavy traffic. The car's displacement (in metres) can be calculated from the area under this graph. What is it? Give your answer to one significant figure.

The graph shows the speed of a remote controlled toy car travelling along a race track. The car's displacement (in metres) can be calculated from the area under this graph. What is it? Give your answer to 3 significant figures.

The graph shows the speed of a remote controlled toy car travelling along a race track. The car's displacement (in metres) can be calculated from the area under this graph. What is it? Give your answer to 3 significant figures.

总行驶距离是多少？（只写数值，不写单位）[Fill in the blank],米 如果您无法查看此图像，请单击此处。

What is the total distance travelled? (only write the numerical value, no unit) [Fill in the blank], m If you cannot view this image, click here.

更多留学生实用工具

希望你的学习变得更简单

总行驶距离是多少？（只写数值，不写单位）[Fill in the blank],米如果您无法查看此图像，请单击此处。