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Q: Instantaneous acceleration describes how fast a is changing at a specific instant?
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Is how fast velocity is changing at a specific instant?

That's the magnitude of instantaneous acceleration.


What is the direction of instantaneous acceleration?

The acceleration can be in any direction; it depends on the specific situation.


Is Average velocity the slope of the line tangent to the curve on a velocity time graph at a specific instant of time?

No, it is instantaneous acceleration.


Acceleration is how fast a velocity is changing at a specific instant?

Yes, plus the direction that it's changing in.


What is instantaneous acceleration?

a=dv/dt=d/dt(dx/dt)=d^2x/dt^2Is the rate of a tangent to the slope of a graph signifying velocity versus time. It is a snapshot of acceleration at a precise moment in time based on the relative changes in velocity over time. It is the limit of acceleration for any given point within the displacement vector.Instantaneous acceleration is how fast a velocity is changing at a specific instant.


How fast velocity is changing at a specific instant?

Acceleration is the rate of change of velocity.


Define speed at which an object is moving at a given instant time?

If the displacement of the object (its position) can be described as a functional or algebric equation, you can find the instant speed of this object by calculating the derivative of its displacement equation, knowing that speed is the first derivative of position and acceleration, its second.


The measure of how fast a velocity is changing at a specific instant is known as?

The rate of change of velocity is known as acceleration. This can come in different forms (linear / nonlinear acceleration, angular acceleration ect).


What is the Instantaneous velocity?

Instantaneous velocity is the velocity in difference displacement in shortest time or specific time interval.


What is the difference between instantaneous speed and speed?

Instantaneous speed is speed measured at a specific time. Speed is an average.


What definition is Speed calculated at a specific point in time?

"instantaneous speed"


Is Acceleration is a rate that can describe how speed or direction is changing?

Acceleration is a change in velocity. Velocity is defined as the speed of an object in a specific direction. It is a vector quantity. Thus acceleration could be a rate of change of speed, velocity or both. In addition, acceration can be negative. In physics terms, there is no such thing as "Deceleration". Any change is considered to be acceleration.