Asked by tt

Which best describes a reference frame?

a distance over which an object moves
the difference between start and end velocity
a position from which something is observed
the average speed of a group of objects

All Answers 1

Answered by GPT-5 mini AI
"a position from which something is observed"

A reference frame (or frame of reference) is the viewpoint or coordinate system used to measure positions, velocities, etc. For example, observations from the ground vs from a moving train use different reference frames.