Math and Arithmetic

Does average velocity and average speed have the same number?


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2013-05-25 10:23:27
2013-05-25 10:23:27

velocity is a vector and speed is scalar. Velocity has magnitude and directions, with magnitude being speed. The magnitude of average velocity and average speed is the same.

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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.

The magnitude of both can be the same.

The size of velocity and the size of speed are the same number. But velocity also has a direction and speed doesn't.

I think it is cuz speed is velocity it's just a vector (more difficult name)

BecuZ average is the same limit and the other is nesting velocity

In that case, the average speed is the same as the instantaneous speed.

Speed and velocity always have the same magnitude, becausespeed is the magnitude of velocity.The difference is that velocity has a direction but speed doesn't

In popular speech it is the same; in physics, it is not. Velocity is a vector, meaning that it includes a direction. Speed is just the number, that is, without specifying a direction.

As long as there is no change in direction then they are effectively the same.

No, they are not the same! Velocity involves the speed and the direction of the moving object...

same speed , coz velocity is constant velocity consists of speed and direction...

No. Speed has no direction. Velocity is speed anddirection.

velocity is just a general term for speed (it could be average velocity or instantaneous velocity). Instantaneous velocity/speed (same thing) is the speed at that second. If you are familiar with calculus, it is the derivative of the position graph. Whereas average velocity is how fast the object is going in, for example, 1 hour, it is the speed that is maintained the whole hour (or the average) Instantaneous would be that at the second, at for example t=1.425, the speed is 24m/h . something along those lines

Yes, if the car moves in only one direction.

No, velocity is a vector quantity (i.e. magnitude & direction) while speed is a scalar quantity (i.e. magnitude only).

One example of Velocity is that if you are running in the same direction, your speed and velocity is the same. But if you are running AROUND the track, your speed is the same but your velocity is changing.

Instantaneous speed is the magnitude of the velocity. Velocity also states the [direction] of the speed.

Velocity is speed and the direction of the speed. (30 miles per hour going north) and (30 miles per hour going south) are both the same speed, but they're opposite velocities.

No. Inertia is the tendency of an object to maintain its velocity.

No. Velocity is the combination of a speed and its direction. In order fortwo objects to have the same velocity, they must be moving at the samespeed, and in the same direction.

Velocity is a vector (has a size and a direction) but speed is a scalar (just a number). The velocity is therefore given by the speed and the direction the speed is going. If you change the direction but continue at the same rate the velocity changes but the speed doesn't

Yes, since velocity is speed and direction its average can be zero. For example say a plane flies from point A to point B at 300 mph and turns around to go from B to A at 300 mph; its average velocity is 0 since it is in the same spot as it started ( the velocity vectors cancel) but its average speed is 300 mph.

In common speech, velocity means speed, they are the same thing.

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