A person in a bus tends to fall backward, when it starts suddenly?

Why does a person in a bus tends to fall forward when it stops suddenly?

A standing passenger falls backwards when the bus starts suddenly. Which Newtons law gives the above concept.State the law.

A standing passenger falls backwards when the bus starts suddenly. Explain why this happens.

The rider tends to fall backward when a horse start suddenly. This is due to ___________ of ______________.

The rider tends to fall backward when a horse start suddenly. This is due to ___________ of ______________.