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Answered 2008-09-11 06:31:18

Yes. Velocity is speed and direction so it can change velocity by changing direction.

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If the instantaneous velocity of an object remains constand can its instantaneous speed change?

No. Speed can remain constant when velocity changes, but velocity can't remain constant when speed changes.

If the instantaneous velocity of an object is constant then so is acceleration.?

It does not make sense to say that the instantaneous velocity is constant. Instantaneous velocity by definition means that it is the velocity at a moment of time. If this is a question on some homework, just say no. The acceleration, or rate of change of the velocity, is not necessarily constant.

The velocity of an object can change even if the speed remains constant?

Yes. The velocity can change if the speed remains constant and the direction changes.

Can the speed of an object changes if there is constant velocity?

No, constant velocity implies constant speed. But velocity can change even when speed remains constant, since speed is a scalar quantity but velocity is a vector quantity.

Can velocity change even if the speed remains constant?

Velocity is dependent on speed AND direction, therefore velocity will change if the direction is changed.

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.

Can you have velocity without acceleration?

Yes. Acceleration is a change in velocity. With no acceleration, velocity remains constant, possibly at zero.

How is acceleration calcuated?

Dividing change of velocity by the time it takes to change the velocity. If acceleration is not constant, this will give you the average acceleration during the period; to get the instantaneous acceleration, you have to take the derivative of the velocity.

Does an object's velocity remain constant when its speed and velocity do not change?

Reading the question carefully, I can state categorically, withoutthe slightest fear of contradiction, that YES, the object's velocityremains constant when its velocity does not change.

Can an object be accelerating if it has constant velocity?

No. The definition of acceleration is the change in an object's velocity over time. Acceleration must then be zero since velocity remains constant.

Name the physical quantity which remains constant during circular motion?

In a uniform circular motion,the magnitude of velocity remains constant,that is speed is constant,however due to change in direction in circular path constantly the motion is accelerated due to change in velocity.

What does instantaneous velocity mean?

Instantaneous velocity is a vector quantity representing the velocity Vi at any point.It is the time rate of change in displacement.

What is instentaneous acceleration?

instantaneous acceleration is the instantaneous change of velocity with respect to time.

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.

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.

How can you find the value of the impulse?

The value of an impulse is the change in momentum. If the mass remains constant it is the mass times the change in velocity.

What are some examples when speed remains constant but the velocity changes?

Velocity is a vector; velocity tells you how fast something is traveling (speed),and its direction. A change in velocity could indicate a change in direction orspeed, or both.

Is it possible that the velocity of a body changes and its acceleration remains constant?

The definition of acceleration is: Any change of velocity, that is, speed or direction of motion. If an object is undergoing constant acceleration, then the definition says that its velocity must be changing.

What is the acceleration of a object that moves at constant velocity?

Acceleration is change of velocity. If velocity is constant ... "no change" ... then acceleration is zero.

The velocity of an object can what if the speed of an object remains constant?

The velocity can still change, even if the speed doesn't. This is because velocity is a vector - not only the magnitude is important, but also the direction.

Can it have zero acceleration and non zero velocity?

Yes this is possible, when the velocity is constant. When velocity is constant there is no change in velocity, if there is no change in velocity then is no acceraltion. e.g. : a car traveling at a constant speed of 40m/s

Why achanging velocity cannot maintaining constant speed?

A changing velocity can maintain constant speed if the motion is circular. The constant change in direction is a change in velocity, even if the speed is constant.

What is the rate of change in position at a given point in time?

The rate of change in position at a given point in time is instantaneous speed, instantaneous velocity.

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