A curved slope means that the acceleration is changing – the object has non-uniform acceleration. Check carefully whether a graph is a speed-time graph or a distance-time graph. On true speed–time graphs, the speed has only positive values. On velocity–time graphs the velocity can be...
* (b) use graphical methods to represent displacement, speed, velocity and acceleration. * (c) find displacement from the area under a velocity-time graph. * (d) use the slope of a displacement-time graph to find the velocity.* (e) use the slope of a velocity-time graph to find the...
第一个，是我们最常的速度的意思，不需要精确计算第二个，一般是计算后的速度，所以数学和物理上常用，或强调一个正常，准确的速度概念时常用最后一个是加速度，当然不同了以上是我自己的总结，我认为就可以区别这三个词了，你还可以多参考其他答案 ...
The limit of this quotient as the time of travel becomes vanishingly small; the first derivative of distance with respect to time. Acceleration An increase in speed; Modern science caused an acceleration of cultural change Speed The magnitude of a velocity. Acceleration The act of accelerating; in...
百度试题 结果1 题目1 Which quantities are scalar?(1)speed and work(2)velocity and force(3)distance and acceleration(4)momentum and power 相关知识点: 试题来源: 解析 1 反馈 收藏
səti]n.速率，速度;周转率;高速，快速 1、To remove the ambiguity, these laws should refer to the velocity and the acceleration of the center of mass.要避免含糊，这些定律所指的应当是质心的速度和加速度。2、Gazelles can move with astonishing velocity.羚羊跑起来有时速度惊人。
acceleration是加速度, velocity是速度,speed是位移,知道意思应该就没问题了吧
Learn about the speed, velocity, and acceleration of an object in motion. Understand the relation between speed, velocity, and acceleration.
Physics 2 - Speed^J velocity and acceleration (in class) [自动保存的]PHYSICS–Speed,velocityandacceleration LEARNINGOBJECTIVES 1.2MotionCore•Definespeedandcalculateaveragespeedfromtotaltime/totaldistance•Plotandinterpretaspeed-timegraphoradistance-timegraph•Recognisefromtheshapeofaspeedtimegraphwhena...
A light based distance, velocity and acceleration sensor which uses phase difference to determine the desired measurement. A laser signal is modulated by an oscillator signal and reflected off an object to a signal receiver. The reflected laser signal and the oscillator signal then pass through a ...