Velocity is a quantity that has magnitude and direction. The magnitude of velocity is what we call "speed".
If the velocity is constant, then its magnitude and direction are both constant.
Constant magnitude means constant speed.
So the answer to the question is "Yes".
Speed is scalar, a number and it is constant for circular motion. Velocity however is a vector, it contains 3 units of information; the net speed in the x, y and z directions. Velocity does change during circular motion, because at one point in the circle you might be moving in the x direction, and later on in de -x direction.
Speed is the absolute length of velocity and that remains constant.
No. The car is not accelerating if at constant velocity. Acceleration is the change in velocity with time.
If the momentum doesn't change, the velocity doesn't change, either, since we can assume that the mass will hardly change.
between 2000-2500rpm
yes,by changing its direction
If you are traveling at a constant speed with changing direction there is a change in velocity, so you are accelerating.
because it stays the same
Velocity consists of a speed and a direction. If any of the two changes, the velocity changes.
a fluid in which ita velocity at any point is constant or varies in a regular manner.
Direction does not have to change when velocity is changed. You can move North at 10 m/s and change it to 8 m/s a second later. You would still be moving North. But since velocity is a vector, if direction changes, even though speed (magnitude of velocity) remains constant, then velocity most certainly changed, since both magnitude and direction make up the vector.
If you are traveling at a constant speed with changing direction there is a change in velocity, so you are accelerating.
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.
They are related through the formula distance = time x velocity (assuming constant velocity).
because it stays the same
Velocity consists of a speed and a direction. If any of the two changes, the velocity changes.
Your body cannot sense constant velocity. For example, you cannot sense that the earth is turning nor can you sense that the earth is orbiting around the sun. And, if you are in a vehicle that is traveling with a constant velocity, you cannot sense that you are moving unless your eyes sense a change in position.
a fluid in which ita velocity at any point is constant or varies in a regular manner.
Acceleration is change in velocity. These are vectors that have magnitude and direction. Changing either magnitude (speed) or direction will have the skater be accelerating. SO, if the skater is going at a constant speed of 2m/s in a straight line, he is not accelerating. If he is at a constant speed of 2m/s traveling in a circle (you gave the word "around"), he is accelerating. Going around in circles means there is a force constantly changing your direction. Obviously that force is coming from the skaters legs.
Direction does not have to change when velocity is changed. You can move North at 10 m/s and change it to 8 m/s a second later. You would still be moving North. But since velocity is a vector, if direction changes, even though speed (magnitude of velocity) remains constant, then velocity most certainly changed, since both magnitude and direction make up the vector.
Homeostasis means maintaining a stable internal environment, despite changing external conditions.
Ok but did I ask?
Yes, it can. Perhaps the simplest example is when an object moves at constant speed, in a circle. In this case, the speed doesn't change; the velocity does.