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Can a body have zero average velocity but a nonzero average speed give example?
Wiki User
∙ 13y ago
The short answer is no it can't. There are a few more complex situations where you could argue the oposite: 1/ A race car doing laps around a circuit could have an average speed over 1 lap of 200mph but would have an average velocity of zero. This is because speed is a scalar measurement (how fast an object is moving) whilst velocity is a vector measurement (how fast an object is changing its position) Since the race car is at the start/finish line at the start and end of the lap it is in the same position so its average velocity is zero. Of course at any given moment during its lap its velocity would not be zero so I don't think this counts. Average velocity can be zero whilst average speed is not zero but "average" is the important word and isn't included in the question. 2/ Frames of reference - The Earth is travelling around the sun at a speed of roughly 67,000 mph (about 100,000 kph.) At what speed is a book sitting still on a table moving? If we use the Earth as a frame of reference then the book has a speed and velocity of zero. If we use the Sun as a frame of reference then the book is actually moving at a speed of about 67,000mph. (Plus or minus a bit for the rotation of the Earth about its axis.) If we use different frames of reference then a body can have zero velocity in one and non-zero speed in another. I'm inclined to think this is "cheating" and that the answer to the question remains no.
Wiki User
∙ 15y ago
Wiki User
∙ 15y agoIt actually can. Say a car moves north at 50 miles per hour for 4 hours. Then it moves south at 50 miles per hour for 4 hours. In the end, it returns to it's starting point. The average velocity over that 8 hour period is then zero, because it really went nowhere.
Wiki User
∙ 14y agoIf the average velocity of an object is zero is the average speed zero? no
Velocity is a vector. Drive 50 mph east for 2 hours and then turn around and drive 50 mph west for 2 hours. 50 mph east is + 50, and 50 mph west is -50. Average velocity = (+50 + - 50) ÷ 2 = 0
Speed is not a vector, it has no + or - sign. 50mph east is the same as 50 mph west. Average speed = 50 mph
Displacement = distance from beginning point to final point
Average velocity = displacement ÷ time = 0 miles ÷ 4 hr = 0mph
Distance = length of path traveled ÷ time
Average Speed = distance ÷ time = 200mi ÷ 4 hrs = 50mph
Wiki User
∙ 13y agoYes. it is possible to have average speed (even average velocity as vector, <v> ) to be zero. But the velocity in a given time is not zero. A famous example is electron in magnetic field. It has velocity but orbiting (classically), however it's average position is the same (quantum mechanically), so the electron stays there and do not go anywhere (no current).
Wiki User
∙ 11y agoSince speed is a scalar quantity, the only way the average speed can be zero is if the instantaneous speed is at all times zero, making it not a moving body, so no on the average speed.
The average velocity, on the other hand, can easily be zero. The simplest example is you running in a circle.
Wiki User
∙ 15y agoA pendulum could, because it's moving backward as fast as it's moving forward.
Wiki User
∙ 13y agoYes, you can. Example: An object going around in a circle.
Wiki User
∙ 11y agoewqrrejgkl jt
Wiki User
∙ 11y agoCertainly
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Can object have zero acceleration and nonzero velocity at the same time.give example?
Yes, for example, a car moving at constant speed.
When is average speed of an object not equal to average velocity?
For example, an object goes in a circle, at a speed of 50 km/hour. The average speed is 50 km/hour; the average velocity is zero.
Can you have zero displacement and nonzero velocity?
i will give u an illustration, consider an object projected (thrown)with some initial vertical velocity from the ground such that it traces a open downward parabolicpath, in that path the vertical displacement of the body from the point of projection to the point where it strikes the ground is equal to zero,but it have some velocity.
Why can velocity be negative but nonzero speed is always positive?
speed is a scalar quantity with magnitude only but no direction; velocity is a vector with both magnitude (speed) AND direction, which could be positive or negative
Compare and contrast velocity and instantaneous speed?
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
Can a body have nonzero average speed but have zero average velocity give example?
An object moving in a circular path at constant speed will have a non-zero average speed and zero average velocity since velocity is a vector parameter,
Can object have zero acceleration and nonzero velocity at the same time.give example?
Yes, for example, a car moving at constant speed.
When is average speed of an object not equal to average velocity?
For example, an object goes in a circle, at a speed of 50 km/hour. The average speed is 50 km/hour; the average velocity is zero.
Is it possible that a body has zero speed and nonzero velocity?
No because velocity defined as speed in a given direction so if speed is 0 then velocity must also be 0
Can you have zero displacement and nonzero velocity?
i will give u an illustration, consider an object projected (thrown)with some initial vertical velocity from the ground such that it traces a open downward parabolicpath, in that path the vertical displacement of the body from the point of projection to the point where it strikes the ground is equal to zero,but it have some velocity.
When average velocity and average speed is equal?
For the instantaneous value of average velocity, average speed and average velocity are equal.
How is velocity different from average speeed?
Velocity is speed and its direction. Average velocity is average speed and its direction.
Does average velocity and average speed have the same number?
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.
Why can velocity be negative but nonzero speed is always positive?
speed is a scalar quantity with magnitude only but no direction; velocity is a vector with both magnitude (speed) AND direction, which could be positive or negative
Compare and contrast velocity and instantaneous speed?
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
Can average speed of a moving object be zerogive an example?
No, it can't. Average VELOCITY can be zero, though.
What is the velocity?
Velocity is a speed with a direction (e.g. 20 miles per hour North). your example is an average velocity. velocity is displacement over elapsed time. it is speed. i know this and im only 11
