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Answered 2012-12-04 08:00:25

Acceleration and it is defined as the rate of change of velocity with time.

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Uniform velocity means the velocity is not changing. Acceleration is defined as the rate of change of velocity. If velocity isn't changing, the rate of change is zero.


-- 'Velocity' is the rate at which position is changing, and the direction of the change. -- 'Acceleration' is the rate at which velocity is changing, and the direction of the change.


The rate at which velocity is changing is called "acceleration".


Acceleration is the rate at which velocity is changing.


Acceleration is the rate at which velocity is changing, with the direction of the change.


Acceleration is the rate of change of velocity.



Because acceleration is the rate of change of velocity: it is a measure of how quickly velocity is changing.


Acceleration is the derivative of velocity. In other words, acceleration is the rate at which the velocity is changing.


Velocity = speed, and the direction in which it's happening Acceleration = rate at which speed is changing, and the direction in which it's changing




An object moving at constant speed in a circle. Acceleration is rate of change of velocity, as velocity is speed in a certain direction, when moving in a circle an object's velocity is constantly changing, as its velocity is changing it is accelerating.


Yes. Velocity is rate (or speed) in a given direction. If you change your direction but not your rate (or speed) then you have changed your velocity without changing speed.


Acceleration is the rate of change in velocity. When velocity is constant, it is NOT CHANGING so acceleration is negligible or ZERO or non-existent.


The rate of which something changes its velocity is the acceleration. A common mistake is to think that something moving fast is accelerating, but it's only accelerating if the velocity of that object is changing.


Speed is how fast you're going - velocity is your speed plus what direction you're traveling in - and acceleration is the rate at which your velocity is changing.


That rate of change, along with the direction in which it's changing, comprise the object's acceleration.


Yes it is possible to have a changing velocity at a constant speed. Velocity is defined as the rate of change of position therefore if the direction of the constant speed changes then that constitutes a changing velocity. For example driving in a circle means that the speed is constant but the direction changes as you drive :) Betlehem Semahge


a=dv/dt. By definition, acceleration is the rate of change of velocity. In mathematical notation, it is given as the formula stated above. Two special cases: 1. When acceleration is constant: The rate of change is a constant. Therefore, it can be calculated by: a=(vf - vi) / t where a is acceleration vf is final velocity vi is initial velocity and t is time taken 2. When velocity is constant: Velocity is not changing. The rate of change of velocity is zero. Acceleration has to be zero. * * * * * Note that velocity and acceleration are both VECTORS. Therefore, an object going round in a circle, at CONSTANT speed, has velocity and acceleration that are changing all the time - because the direction of motion is changing.


"Constant" means that regardless of when you measure it, the result is always the same. "Velocity" means speed and its direction. "Acceleration" means the rate at which speed is changing, and the direction in which it's changing.


They are changing velocity. Velocity is the measure of speed and direction


This object is changing its position, its velocity, and its acceleration.This object is changing its position, its velocity, and its acceleration.This object is changing its position, its velocity, and its acceleration.This object is changing its position, its velocity, and its acceleration.



This is known as acceleration (rate of change of velocity) measured in units of m/s/s or m/s2



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