Why do you fall in the forward direction when a moving bus brakes to a stop and fall backwards when it accelerates from rest?
Answer
When the Bus applies brakes, Passengers get pushed forward
When the bus stops suddenly, the lower part of the body which is in contact with the car stops. But the upper part is still in motion due to inertia. Hence, the passenger is pushed forward
When the Bus starts suddenly, Passengers move backwards
When the bus starts suddenly, the lower part of the body which is in contact with the car is in motion. But the upper part is still at rest due to inertia. Hence, the passenger moves backwards