Why are we able to use these motions to describe the motion relative to the ground?
(1 point)
Responses
The motion of everything in the Universe besides light can be described in this way.
The motion of everything in the Universe besides light can be described in this way.
As long as the frame of reference is stationary, all motion can be described in this way.
As long as the frame of reference is stationary, all motion can be described in this way.
If one object is moving much slower than the speed of light, its speed can be added to that of another object.
If one object is moving much slower than the speed of light, its speed can be added to that of another object.
The people are moving much slower than the speed of light so the ground acts as a frame of reference.
The people are moving much slower than the speed of light so the ground acts as a frame of reference.
1 answer
The correct response is:
If one object is moving much slower than the speed of light, its speed can be added to that of another object.
This statement is related to the principles of classical (non-relativistic) mechanics, where velocities can be added or subtracted as long as they are much smaller than the speed of light. In this case, the train's speed can be combined with the walking speed of the people relative to the train to find their speed relative to the ground.
