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Never.

Average velocity is total displacement (final position minus initial position) divided by the total time: vave = (xf-xi)/t

Acceleration is the rate at which your velocity is changing or change in velocity over time: a= (vf-vi)/t

These two quantities may have the same numerical value but will never have the same units.

Average velocity for a trip can equal instantaneous velocity at a certain point during the trip, however, at any time during a trip in which the velocity is constant or at half way through the total time of a trip where the acceleration is constant.

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15y ago
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14y ago

If the object begins from rest and a constant force is applied to it, then at the end of one second, the magnitude of its velocity is numerically equal to the magnitude of its average acceleration, although the units are different.

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Q: When will the average acceleration be equal to instantaneous velocity?
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When average velocity is equal to its instantaneous velocity acceleration?

you are still. motion is at rest.


Can the average speed ever equal the instantaneous speed?

When there is no acceleration or when there is constant acceleration. When either of these cases is present, the graph of velocity versus time will be linear. When there is linear velocity, the average velocity will equal the instantaneous velocity at any point on the graph.


Is average acceleration equal to instantaneous acceleration for a uniformly accelerated car?

Average acceleration will be equal to instantaneous acceleration when an object has an uniform acceleration throughout its motion. Example : A car accelerating at 1m/s2 uniformly in a straight line.


When is an object's average velocity equal to its instantaneous velocity?

If the velocity is constant (i.e., there is no acceleration). Terminal velocity is an example, although any constant velocity would fit this description.


When average velocity and average speed is equal?

For the instantaneous value of average velocity, average speed and average velocity are equal.


When will the average velocity be equal to instantaneous velocity?

In uniform motion.


When is the average velocity is equal to the instantaneous velocity?

Average velocity equals the average speed if (and only if) the motion is in the same direction. If not, the average speed, being the average of the absolute value of the velocity, will be larger.


What does velocity divided by the time interval equal?

It equals an undefined entity. The average acceleration of an object equals the CHANGE in velocity divided by the time interval. The term "change in velocity" is not the same as the term "velocity", "average velocity", or "instantaneous velocity".


When is the instantaneous velocity equal to avg velocity?

Mainly, when the velocity doesn't change. Also, in the case of varying velocity, the instantaneous velocity might, for a brief instant, be equal to the average velocity.


How is instantaneous acceleration related to a velocity-time graph?

Acceleration is the derivative of velocity (a=dv/dt). If you are not familiar with calculus then it would be sufficient to say that the slope of the line tangent to the graph, only touches at one point, is equal to the instantaneous acceleration.


To justify with calculation average speed is equal to instantaneous speed?

Only if speed is constant. There can be no acceleration if the average speed is equal to the instantaneous speed.


The slope of a speed vs time graph is equal to what?

Acceleration.