Question

why do we get a backward push in a bus as it starts suddenly​

Answer 1

Answer:

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.

Answer 2

bcoz the engine generates some force before starting your vehicles

this is pull not push

this pull will be least in a cycle and maximum on a very heavy land vehicle

Hope this answer helps you