average velocity

简明释义

平均速度

英英释义

例句

1.A cyclist maintained an average velocity 平均速度 of 20 km/h during the race.

在比赛中，骑自行车的人保持了20公里每小时的平均速度。

2.The car traveled 100 kilometers in 2 hours, so its average velocity 平均速度 is 50 km/h.

这辆车在2小时内行驶了100公里，因此它的平均速度是50公里每小时。

3.To calculate the average velocity 平均速度, you need to divide the total distance by the total time.

要计算平均速度，你需要将总距离除以总时间。

4.When analyzing motion, the average velocity 平均速度 can provide insights into the object's speed over time.

在分析运动时，平均速度可以提供关于物体随时间变化的速度的洞察。

5.An athlete ran a marathon in 3 hours, resulting in an average velocity 平均速度 of approximately 14 km/h.

一名运动员在3小时内跑完了马拉松，导致其平均速度约为14公里每小时。

作文

In the study of physics, understanding motion is crucial, and one of the fundamental concepts associated with motion is that of average velocity. The term average velocity refers to the total displacement divided by the total time taken for that displacement. This concept is vital in various fields, including engineering, transportation, and even sports. When we analyze how fast an object is moving over a period, we often rely on average velocity to provide a clear picture of its overall motion.To illustrate this idea, consider a car traveling from one city to another. If the car starts at point A and ends at point B, the distance between these two points may vary due to the route taken. However, what matters for calculating average velocity is not just the distance but the straight-line displacement from point A to point B and the time it took to travel that distance. For instance, if the car travels 100 kilometers north in 2 hours, the average velocity would be calculated as follows: Average Velocity = Displacement / Time = 100 km / 2 h = 50 km/h.This means that the car's average velocity was 50 kilometers per hour towards the north. It is important to note that average velocity is a vector quantity, which means it has both magnitude and direction. This is different from average speed, which only considers the distance traveled without regard to direction.Understanding average velocity becomes even more significant when we analyze more complex motions. For example, if the same car makes several stops along the way, the total distance traveled might be much greater than the direct distance from A to B. In such cases, while the average speed might be higher due to the total distance covered, the average velocity will still reflect the net change in position.Moreover, the concept of average velocity can also be applied in everyday situations. When planning a trip, knowing the average velocity of your vehicle helps estimate the time required to reach your destination. If you know the distance and can maintain a consistent speed, you can easily calculate how long it will take to arrive.In conclusion, mastering the concept of average velocity is essential for anyone studying motion in physics or related fields. It provides a clear understanding of how fast an object moves in a specific direction over a given time frame. Whether you are driving, flying, or even walking, being aware of your average velocity can help you make informed decisions about your travel plans. Therefore, the next time you find yourself in motion, take a moment to think about your average velocity and how it relates to your journey. Understanding this concept can enhance not only your academic knowledge but also your practical skills in everyday life.

在物理学的研究中，理解运动至关重要，而与运动相关的基本概念之一就是平均速度。术语平均速度是指总位移除以完成该位移所用的总时间。这个概念在工程、交通和甚至体育等多个领域都至关重要。当我们分析一个物体在一段时间内移动的速度时，我们常常依赖平均速度来提供其整体运动的清晰图景。为了说明这一点，考虑一辆汽车从一个城市旅行到另一个城市。如果汽车从A点出发，最终到达B点，那么这两点之间的距离可能因所走的路线而有所不同。然而，计算平均速度时，重要的不是距离，而是从A点到B点的直线位移以及所花费的时间。例如，如果汽车在2小时内向北行驶100公里，则平均速度的计算如下：平均速度 = 位移 / 时间 = 100公里 / 2小时 = 50公里/小时。这意味着汽车的平均速度是每小时50公里，方向为北。需要注意的是，平均速度是一个矢量量，这意味着它具有大小和方向。这与仅考虑行驶距离而不考虑方向的平均速度不同。当我们分析更复杂的运动时，理解平均速度变得更加重要。例如，如果同一辆车在途中多次停车，则总行驶距离可能远大于从A到B的直接距离。在这种情况下，虽然由于覆盖的总距离，平均速度可能较高，但平均速度仍将反映位置的净变化。此外，平均速度的概念也可以应用于日常情况。当计划旅行时，知道你车辆的平均速度有助于估算到达目的地所需的时间。如果你知道距离并能保持稳定的速度，你就可以轻松计算到达的时间。总之，掌握平均速度的概念对于任何学习物理或相关领域的人来说都是必不可少的。它提供了关于一个物体在特定时间框架内以特定方向移动的速度的清晰理解。无论你是在开车、飞行还是步行，了解你的平均速度可以帮助你对旅行计划做出明智的决定。因此，下次当你发现自己在运动时，花一点时间思考一下你的平均速度以及它与你旅程的关系。理解这个概念不仅可以增强你的学术知识，还可以提高你在日常生活中的实用技能。