下图显示了一辆汽车行驶的速度-时间图像。对于这次行驶，计算

它不会直接告诉你答案，而是问你卡在哪一步看看 AI 是怎么陪你一步步弄懂这道题的

完整解法

1. Calculate the acceleration from the gradient of the speed-time graph during the first 40 seconds.

From $t=0$ to $t=40$ , the speed increases from $0$ m/s to $24$ m/s.

$\text{acceleration}=\frac{\text{change in speed}}{\text{time taken}}=\frac{24-0}{40}=0.6$

答案

$0.6\text{ m/s}^2$

1. Calculate the area under the speed-time graph.

Distance travelled $=$ area under speed-time graph

$\text{Distance}=\frac{1}{2}\times 60\times 24=720$

答案

$720\text{ m}$

AI 分析，可能出错

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