1Are the people sitting on the seats of a moving bus at rest or in motion? Give the reason.
2When our bus overtakes another bus, that bus seems to be crawling, but a bus coming from the opposite direction seems to rush past. Why?
3Two buses A and B move in the same direction with velocities of 15 m/s and 10 m/s. What is the relative velocity of A with respect to B? What would it be if they moved in opposite directions?
4What is a reference point? Give one example.
5Why is the relative velocity of two vehicles moving in the same direction at the same velocity zero?
6Car A moves at 12 m/s and car B at 8 m/s in the same direction. (a) What is the relative velocity of A with respect to B? (b) What would it be if they moved in opposite directions?
7Car A moves at 10 m/s and car B at 15 m/s in the same direction. How far does each travel in one second, and how far ahead does B appear to have gone when watched from A?
8Explain what is meant by saying that rest and motion are relative states.