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Is it possible to have a changing velocity and a constant speed?
Wiki User
∙ 14y ago
Yes, the velocity of a constantly (or not constantly) accelerated object will vary. Velocity is distance per unit time with a vector. It's speed (distance per unit of time) in a given direction. Under constant acceleration, the velocity is changing at a constant rate. But the velocity is changing. It is varying. The object could be speeding up or it could be slowing down. Or it could be changing direction. Any of these change velocity. An object that is experiencing constant acceleration will have its velocity varying. Why wouldn't it have?
Wiki User
∙ 16y ago
Wiki User
∙ 13y agoit depends on what you mean. velocity is a vector-it has a value (i.e. 5m/s) and a direction on 2d space. so when it is constant, none of these change, neither the value nor the diercition.
however, the value of velocity may remain constant, while it's direction changes. in that case it is not correct to call the velocity constant, since the direction changes.
if an object moves around a cetre point in circulart motion without it's speed value changing (let's say it's 10m/s), velocity IS changing, since it's direction is changing. we know that the only means of this happening is through the appliance of a force. this particular force in this example has direction towards the centre, and it's value is (m*u^2)/r, where m is the mass, u the value of speed and r the radius of the orbit.
when we refer to vectors in fysics, especially newtonian, we generaly refer to their value, since the direction in most cases remains constant. you can see this is not always the case
Wiki User
∙ 14y agoYes it is possible to have a changing velocity at a constant speed. Velocity is defined as the rate of change of position therefore if the direction of the constant speed changes then that constitutes a changing velocity. For example driving in a circle means that the speed is constant but the direction changes as you drive :)
Betlehem Semahge
Wiki User
∙ 14y agoYes. Velocity includes the direction of the motion. If the direction changes, then that means
the velocity changes, even if the speed is constant.
Anything rotating at constant speed in a closed path has constantly-changing velocity.
Like a point on a phonograph record, a point on a hard disk drive, or an orbiting TV satellite.
Wiki User
∙ 12y agoYes, certainly. You're fully entitled to it.
Velocity is speed and its direction. If the direction of the motion changes,
then the velocity has changed, even if the speed didn't.
A fine example is a marble or a roulette ball zipping around a circular path
at a constant speed. The speed is not changing, but because its direction
is constantly changing, so is its velocity.
Wiki User
∙ 13y agoI think a body in uniform circular motion can have a constant speed, but variable velocity. Since this body is in circular motion, it changes it's direction. Thus having a variable velocity.
Wiki User
∙ 10y agoYes. A typical case is when an object moves at a constant speed in a circle.
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When can an object a constant speed but not a constant velocity?
If the velocity is constant there is no acceleration. Speed is not velocity, velocity has speed and direction. I A car going around a circular track at 60 mph keeps the same speed but changes direction and thus accelerates at a constant speed. Velocity is speed in a certain direction. So change the speed but keep direction the same and you change the velocity. or Change the direction while keeping the speed the same and you change the velocity. If the speed is constant, any change of direction is a change in velocity. Driving around in a circle is a case of constantly changing direction.
Can an object moving at a constant speed have acceleration?
Acceleration is defined as the change in velocity over a given time period. Velocity is a vector quantity: it includes speed and direction. That being said, you can accelerate an object without changing its speed by simply changing its direction. A body moving along the circumference of a circle its speed may remain a constant, but its velocity will not be a constant since its direction of motion continuously changes, since the velocity changes it has an acceleration.
Can a body moving with uniform speed have variable velocity?
Yes it can.When a body moves in a circular path keeping its speed uniform then it will have variable vilocity as vilocity is the speed in a particular direction and while moving in a circular path its direction keeps changing and so does vilocity
How is it possible for a car to have an average velocity of zero and an average speed of 65 mph?
If the car has an average speed of 65 mph, when it returns to its starting point, it will have a displacement of zero and an average velocity of zero, because velocity has both speed and direction.
What is the change in velocity divided by the time interval in which the change occured?
It is acceleration. The difference between final velocity and initial velocity, divided by the time is the AVERAGE acceleration. Remember, though that velocity is a vector. So if you are going round in a circle at a constant speed, your direction of motion is changing continuously and so you are always accelerating!
Can a body have constant velocity but changing speed?
No, not at all possible. But constant speed with changing velocity is possible.
Is it possible to have a constant velocity and a changing speed?
yes
Can an object have a constant spped and velocity at the same time?
Velocity is a vector quantity. That means it has direction and magnitude. Speed is a scalar quantity, it only has magnitude. It is possible to have constant speed and constant velocity but it is also possible to have constant speed but changing velocity if the object is changing direction.
What is an example of constant speed with changing velocity?
Velocity is a vector, thus it has a direction. Therefore, you can change the velocity by changing direction. A great example of this is a ball on a string spinning at a constant speed, but it is continually changing direction, therefore, even though the speed is constant the velocity changes at every instant.
Can a car move with changing velocity while maintaining constant speed?
Constant speed around a curve is changing velocity.
If you are traveling around a curve at a constant speed of 30 km is the veiocity change?
Yes, the velocity is changing. Velocity is a quantity composed of the speed and the direction of motion. Constant velocity means: Constant speed, in a straight line. If the direction is changing, then the velocity is changing, even if the speed is constant.
If a ferris wheel is rotating at constant speed is it moving at a constant velocity?
No. Velocity combines speed and the direction of motion.Constant velocity is constant speed in a straight line.In circular motion, the velocity is always changing even if the speed is constant,because the direction is always changing.
Moving at constant velocity is also moving with constant speed?
Velocity is Speed in a given direction. Moving at constant velocity is equivalent to say moving with a constant speed in a specified direction. So, moving at constant velocity implicitly means moving with constant speed.
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.
Can a body have constant velocity when it has constant speed?
Of course. In fact, in order to have constant velocity, it must have constant speed.What you really want to know: Can a body have changing velocity when it has constant speed ?The answer to that one is also "yes", for example when it is moving in a circle, the speed is constant but the velocity is changing all the time (in direction).
Can a velocity of a body change its speed is constant?
No. A body with constant velocity is either stationary or going at constant speed in a constant direction. The usual interpretation of speed and velocity goes like this. A velocity is a vector with magnitude and direction. The magnitude is usually called its speed. Changing a speed must change the length of the vector and changing the length of the velocity vector has to change the velocity.
Can speed of a body change if its velocity is constant?
No. A body with constant velocity is either stationary or going at constant speed in a constant direction. The usual interpretation of speed and velocity goes like this. A velocity is a vector with magnitude and direction. The magnitude is usually called its speed. Changing a speed must change the length of the vector and changing the length of the velocity vector has to change the velocity.
