Question

Explain the following situations using the Newton first law of motion.

i). if a book is pulled out very quickly from the middle of books,the books at the top will drop instead of moving along with it.

ii). When a moving bus stops suddenly, the passenger move forward. ​

Answer 1

Answer:

i). This happens because of inertia of rest which acts on the books kept at the top. The same you would observe when you play carom

ii). This happens because of inertia of motion. Your upper body moves forward as it is in indirect contact from the base of the bus, thus the inertia of motion willing to prevent state of rest would make you move forward.