Question

Answer the following reasons.

(a) Why we move backward when suddenly bus starts?

(b) Explain why some of the leaves may get detached from a tree if we vigorously shake its branch​

Answer 1

Answer:

a) Inertia. explained by Newton's 1st law of motion.

b) Those are dead leaves just slightly attached to the branches

Answer 2

Answer:

a) When a bus starts suddenly,the person falls backwards because of inertia of rest of passenger.This is due to the fact that because of their inertia ,the passengers tend to remain in their state of rest when the bus starts suddenly.

b) The answer of this cause lies behind the Newton’s First Law of Motion. Initially, leaves and tree both are in rest. But when the tree is shaken vigorously, tree comes in motion while leaves have tendency to be in rest. Thus, because of remaining in the position of rest some of the leaves may get detached from a tree if we vigorously shake its branch.

Hope it helps