0
What else can I help you with?
Why the speed of an object is constant while the velocity is not?
This is not always the case. But if an object moves in a circle, at constant speed, its velocity will change. Velocity is a vector - consisting of the magnitude (the speed), and a direction. So by definition, if the direction changes, the velocity changes - you have a different vector.
How is speed of a body related its velocity?
Part of every velocity is a speed. Speed is the size of the velocity.But the velocity also has a direction, which the speed doesn't.'30 mph North' and '30 mph West' are the same speed but different velocity.
Do velocity describe both speed and time?
Velocity only describes speed and direction, while speed alone describes the rate of motion of an object without considering direction. Time is not directly a part of the definition of velocity, but it is a factor in determining the displacement traveled at a certain velocity.
Is it possible for an object moving in constant velocity having varying speed justify your answer?
No, it isn't possible. Velocity specifies both speed and direction; if velocity doesn't change, that means that neither the speed nor the direction change.
Does the speed of an object change when the speed changes?
Yes. The velocity changes when the direction of motion changes, because the definition of 'velocity' is 'speed and the direction'. If either speed or direction changes, then we say the velocity has changed. Notice that if the direction changes, then the velocity changes even if the speed doesn't. "Velocity" is not just a bigger word that you use for 'speed' when you want to sound smart. They mean different things.
Why there's a change velocity if you are changing direction?
Because that's the definition of 'velocity'.'Velocity' is not just a word you use instead of 'speed' when you want to sound smart.It's meaning is different from the meaning of 'speed'.'Velocity' has two parts to it . . . speed and direction. If either of those changes, thenthe velocity has changed.
How is increasing speed acceleration?
By definition acceleration is the change in velocity (speed).
Are speed and velocity different?
SPEED has the speed only; while VELOCITY has the direction and the speed.
What is the definition velocity?
Speed plus the direction of travel.
Why the speed of an object is constant while the velocity is not?
This is not always the case. But if an object moves in a circle, at constant speed, its velocity will change. Velocity is a vector - consisting of the magnitude (the speed), and a direction. So by definition, if the direction changes, the velocity changes - you have a different vector.
Can an object acceleration if its velocity is constant?
No. It is a matter of definition. Acceleration is defined as a change of velocity. Technically, one must distinguish between velocity and speed. Velocity is a vector and includes the information about the magnitude (speed)and direction. One can have a constant speed and an acceleration (as in circular motion) but, by definition, constant velocity means zero acceleration.
How is velocity different from average speeed?
Velocity is speed and its direction. Average velocity is average speed and its direction.
Can a particle in one dimensional motion have less speed than velocity?
Speed and velocity cannot be compared because they are different things. It is like saying "apples > oranges". Velocity is a vector and, as such, it has a direction and a size. The size of the vector velocity is it's speed.To answer your question: no because they can't be compared. And if you wanted to ask if the size of the velocity vector being smaller than the speed... no... that is the definition of speed... so it cannot be different, regardless of the number of dimensions you are using.
Is velocity speed?
As used in physics, the two are different. Speed is a scalar, velocity a vector.
What is the speed and direction at which something moves?
That's the definition of its velocity vector.
What is the definition of high speed?
Meaning something that goes at extreme velocity.
What is the definition of speed of an object and specification of its direction of motion?
If the speed of an object is cited and its direction of motion is also cited, we have the velocity of the object. Velocity is speed plus a direction vector.
