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When can an object a constant speed but not a constant velocity?
Wiki User
∙ 11y ago
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.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoConsider an object turning in a circle at a constant speed. Because velocity is not just the value of speed, but also the direction in which the object is moving, the velocity would not be constant.
Wiki User
∙ 11y agoYes.
Velocity is made up of speed and direction (i.e. 12mph North). So a car driving in a circle could have constant speed, but its velocity would be continually changing.
Wiki User
∙ 12y agoit speeds up so fast it errupts into a flame.
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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.
Is it possible to have a changing velocity and a constant speed?
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?
What describes both speed and direction?
Velocity describes both the speed and direction an object is moving.
What is the greates velocity a falling object can reach called?
The fastest velocity a falling object can reach is called its terminal velocity. This happens when the force of air resistance is equal to the downwards force of weight (gravity), so the object is in equilibrium, and thus reaches a constant velocity.
What influences the kinetic energy of an object?
The mass and velocity of an object determine the kinetic energy of an object. The equation for kinetic energy is KE = 1/2mv2, where m is mass in kg, and v is velocity in m/s.
Can an object have a constant speed and velocity at the same time?
Yes. An object moving in a straight line at constant speed has constant velocity.
What happens to the velocity of an object even if the speed of an object remains constant?
Velocity can change even if speed is constant.
Can an object have constant velocity and but variable speed?
No. Velocity has two parts, speed and direction A constant velocity means that both the speed and the direction must be constant. So a constant velocity must have a constant speed.
Can an object have varying speed if its velocity is constant?
no
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.
Can object at constant speed can maintain constant velocity?
It can, but it won't always. In other words, if the speed is constant, the velocity may, or may not, be constant as well.
Can an object traveling at constant velocity have acceleration why?
If a velocity or speed is constant there isn't an acceleration. This is because the acceleration is the change in speed or velocity and if it's constant then there sn't a change.
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.
Can an object have a constant speed and the varying velocity at the same time explain?
Velocity is a vector. A vector has a magnitude and a direction. The scalar or magnitude portion of velocity is speed. Velocity is a constant only when both the speed and direction are not varying. Hence, when the speed is changing, the velocity cannot be a constant.
What is the difference between constant velocity and variable velocity?
Constant velocity has speed always constant along the direction with respect to time. Variable velocity changes its speed with respect to time. Constant velocity has zero acceleration. Variable velocity has non-zero acceleration . An object moving at a constant velocity maintains both the same speed and direction. An object moving at a variable velocity can be changing speed or direction of travel or both.
What does it mean for an object to have constant velocity?
It means that the object moves in a straight line at a constant speed.
Is the velocity of a horizontal moving object constant?
Only if the direction is constant and the speed is constant.
