What is acceleration a measure of?
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Besides, what is acceleration used for?
But in physics, we use the single term acceleration to mean any change in velocity, whether it be speeding up, slowing down, or changing direction. Or, you can think about it this way. In a car you could accelerate by hitting the gas or the brakes, either of which would cause a change in speed.
One may also ask, is acceleration a vector? Acceleration is a vector quantity because it has both magnitude and direction. When an object has a negative acceleration (it's slowing down), the acceleration occurs in the opposite direction as the movement of the object.
In respect to this, what is the unit of velocity?
The SI unit of velocity is meter per second (m/s).
What is velocity and acceleration?
Velocity is the rate of change of position with respect to time, whereas acceleration is the rate of change of velocity. Both are vector quantities (and so also have a specified direction), but the units of velocity are meters per second while the units of acceleration are meters per second squared.