When we say an object moves with constant speed, it means that the object is moving at the same rate without speeding up or slowing down.
An object with constant velocity is moving in a straight line at a steady speed without changing its direction. This means that the object covers the same distance in equal intervals of time and does not accelerate or decelerate.
It is travelling at a constant speed. This does not mean that there is no acceleration or that the direction of motion remains the same.
It is travelling at a constant speed. This does not mean that there is no acceleration or that the direction of motion remains the same.
I assume you mean "uniform circular motion". That means that:* An object moves in a circle, and * The speed, and therefore also the angular speed, is constant. As an example, this occurs in many machines that have rotating parts.
No, an object cannot accelerate and have a constant speed at the same time. Acceleration is a change in velocity, which includes speed or direction. If an object has a constant speed, it means there is no acceleration occurring.
An object with constant velocity is moving in a straight line at a steady speed without changing its direction. This means that the object covers the same distance in equal intervals of time and does not accelerate or decelerate.
the object's speed doesn't change
It is travelling at a constant speed. This does not mean that there is no acceleration or that the direction of motion remains the same.
it means the object is moving at a constant speed
It is travelling at a constant speed. This does not mean that there is no acceleration or that the direction of motion remains the same.
It means that the velocity doesn't change over time. It's speed is always the same, and it moves in a straight line.
I assume you mean "uniform circular motion". That means that:* An object moves in a circle, and * The speed, and therefore also the angular speed, is constant. As an example, this occurs in many machines that have rotating parts.
No, an object cannot accelerate and have a constant speed at the same time. Acceleration is a change in velocity, which includes speed or direction. If an object has a constant speed, it means there is no acceleration occurring.
It isn't quite clear what you mean with "direct speed". Any time an object moves, it has speed.
It means that the object in question is travelling at constant speed.
Not necessarily.Speed is a scalar measurement that only measures magnitude.Velocity, on the other hand, is a vector measurement and adds the important distinction of a direction.A car rounding a curve may be going the same speed, but its velocity is constantly changing throughout the curve because its direction keeps changing.
The definition of acceleration is:Change of velocity, that is, change of speed or direction or both.In popular, every-day usage, 'acceleration' has come to mean 'speeding up', but as youcan see from the definition, that's not accurate.Acceleration can also mean a change in the direction of motion, without any changeof speed.