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Discussion in 'Cars in General' started by oliviamails, Feb 19, 2020.
What is the difference between velocity and acceleration? How it explain children?
Velocity is a measure of how fast you are moving.
Acceleration is a measure of how quickly that movement is changing.
Thank you. In my understanding Velocity its the rate of displacement of the position of an object in a defined path with respect to time and acceleration its the rate of change of speed as a function of time, like in this article https://differencebtwn.com/difference-between-velocity-and-acceleration. Am I right?
Yes, those are the formal definitions.
In the frame of reference of a car driving in a straight line acceleration is usually a term used to describe the rate of increase in speed while the rate of decrease in speed is called deceleration or retardation.
It's also more common to use speed - a scalar, rather than velocity - a vector, to describe the rate of displacement of position.
Speed: How fast you are going.
Velocity: Speed and direction
Acceleration: How quickly your speed changes
I accelerate to a certain speed to get the correct velocity.
Probably completely wrong but it sounds funny.
That Must Be Giants?
Acceleration is an increase in velocity in a straight line. If the line isn't straight then it's an increase in speed
A car going around a racetrack that leaves Point A and arrives again at Point A after a lap has zero velocity because it has travelled zero distance in the laptime, so the vector begins and ends in the same place. The distance it covered in that laptime gives a positive speed, because speed is computed from the distance covered between timing points.
How quickly an object attains a speed (or decreases its speed) is the acceleration, speed-change-per-second.