when a body can said to be in motion?can any body be at absolutel rest ?
Answers
Answer:
A body cannot exist at a state of absolute rest or absolute motion. For example, two persons sitting in a moving bus are at rest w.r.t each other but are in motion w.r.t. a person standing on the roadside.
Explanation:
Hope this will helpful to you
A body can be said to be in motion if it's position changes with respect to time and a concerned reference frame.
The reference frame can be a plane, a point or a line.
State of motion or rest is simply a relative term. It is based on selection of reference frame.
A body can be at absolute rest. It can be described with a position time graph, where the line will be parallel to the x - axis.
Finally, the graph for a body in motion can be described as a line with a slope and not parallel to the x-axis.
Explanation:
hope it helps