Question

Why passenger traveling in a bus falls forward when a moving bus suddenly stops?

Answer 1

Originally Answered: When a bus or a train stops suddenly, a person sitting inside tends to fall forward, why? Because of inertia. It is tendency of body to travel in uniform motionuntil and unless an external force is applied. ... Newton's first law of motion, “An object in motion tends to remain inmotion.”

Answer 2

So when the bus or train stopped suddenly, a passenger sits inside tends to fall forward. Because the lower part of the body comes to rest with the bus while the upper part tends to continue its motion due to inertia.