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# What are the difference of instantaneous velocity and average velocity?

Updated: 9/22/2023

Wiki User

11y ago

Average velocity in a direction is calculated as the displacement in that direction divided by the total time taken.

As the time interval is reduced, the displacement over that period also reduces and the limiting value of that ratio is the instantaneous velocity.

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11y ago

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Q: What are the difference of instantaneous velocity and average velocity?
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### Difference between instantaneous and average velocity?

average velocity is the displacement over time while instantaneous velocity refers to the velocity of an object at one point or at as pecific point of time. *displacement is the difference between the initial position and the final position of an object. (distance 2 - distance 1)

### What is the Instantaneous velocity?

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

### Does the slope of a position time graph represent average velocity or rate of change of velocity?

The tangent at a point on the position-time graph represents the instantaneous velocity. 1. The tangent is the instantaneous slope. 2. Rather than "average" velocity, the slope gives you "instantaneous" velocity. The average of the instantaneous gives you average velocity.

### What is the relationship between average velocity and instantaneous velocity?

The average velocity over an time interval is the average of the instantaneous velocities for all instants over that period. Conversely, as the time interval is reduced, the average velocity comes closer and closer to the instantaneous velocity.

### Can the average velocity of the body be the same as instantaneous velocity?

Yes, the average velocity of the body can be same as the instantaneous velocity at a small time interval.The values of the average and the instantaneous velocities approach each other , as the length of time interval is decreased.

### Is instantaneous velocity a vector or a scalar?

Velocity is always a scalar, instantaneous or average doesn't matter.

### What Is the difference between velocity and average velocity?

Velocity is an instantaneous measure. Mathematically, it is the limiting value of the change in the position vector divided by the change in time as the latter tends to zero. Over larger time periods, the average velocity is the total change in the position vector divided by the total change in time. If velocity is constant, the average velocity will be the same as the instantaneous velocity.

### 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 will the average velocity be equl to instantaneous velocity?

In uniform motion.

### When Velocity of particle equals average velocity equals instantaneous equals speed is possible?

When the length of the time is decreased more and more ,average velocity of the particles equals instantaneous velocity.

### When an object moves with inconstant velocity does its average velocity differ from its instantaneous velocity?

Generally it is a Yes. Instantaneous velocity is the exact velocity at a particular time in the course of the movement. However, average velocity is the average of all the instantaneous velocity over a period of time. It is also known as speed in everyday life. As a result, the movement of an object over a time period under varying velocity denotes a varying instantaneous velocity which could be different from the average velocity. It is however, possible that the instantaneous velocity equates to the average velocity at a certain point over the duration of movement. For example, a ball is traveling at instantaneous velocity of 99m/s at t=1s , 100m/s at t=2s and 101m/s at t=3s. the average velocity over the 3s period is hence 100m/s which coincides with the instantaneous speed at t=2s.