anything greater than 0 mph
Yes, average speed can be used to calculate the speed of an object moving at a constant speed. This is because the average speed over a whole journey for an object moving at a constant speed is the same as its actual speed.
The typical speed of a moving plate is about 21mm a year.
The word is "stationary" for not moving, and "constant velocity" for moving at a constant speed in the same direction.
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.
If you are moving at the speed of light, then "how fast" has no meaning.
Yes if the train is moving forward, you are moving at the train speed + walking speed relative to the tracks.
Relative speed is the speed between two moving objects with no regards to a fixed reference. Speed is how fast something is moving with respect to an object.
The speed and direction of a moving body is called velocity. Velocity is a vector quantity that specifies both the speed of an object and the direction in which it is moving.
Velocity, or Speed
it means the object is moving at a constant speed
None, as "not moving at all" is just moving at a constant speed of zero. Special relativity shows that there is nothing unique or different about zero speed. It is just a value of constant speed.
Dark Matter Moving at the Speed of Light was created in 2004.