Select the correct alternative:
A book lying on a table is an example of
- a body at rest
- a body in motion
- a body neither at rest nor in motion
- none of these
Fill in the blank:
Two boys cycling on the road with the same speed are................. relative to each other.
Fill in the blank using one of the word : at rest, in motion.
A person sitting in a compartment of a moving train is relative to the other person sitting by his side and is relative to the platform.