Question

why do we fall backwards when the bus starts to accelerate?​

Answer 1

Answer:

When the bus starts moving suddenly, the lower part of the body of passengers, which is in contact with the bus, come in motion, but upper part of their body tends to be in the state of rest and the passengers fall backward.

Answer 2

Answer:

so here's your answer,When the bus starts moving suddenly, the lower part of the body of passengers, which is in contact with the bus, come in motion, but upper part of their body tends to be in the state of rest and the passengers fall backward.

hope it will help