What happens to the passengers Travelling in a bus when the driver applies brakes suddenly?
What happens to the passengers Travelling in a bus when the driver applies brakes suddenly? When a moving bus suddenly applies brakes, the passengers sitting in it fall in the forward direction. This can be explained by Newton's first law. This is true because of the law of inertia when the bus was moving with some constant velocity hence passengers will also move with the bus.
Why do passengers fall backward when the bus stops suddenly?
This is due to inertia of rest of upper part of the passengers body when the bus or train suddenly starts moving, the lower part of the passenger's body starts moving along with the bus or train while upper part of the body has a tendency to remain in the state of rest due to inertia of rest and hence falls backward.