Why does it happen if a stationary bus suddenly speeds up?

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 the upper part of the body has a tendency to remain in the state of rest due to inertia of rest, and hence falls ...



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When a bus starts suddenly,its passengers tend to fall backwards because due to their inertia, the passengers tend to remain in a state of rest even when the bus starts moving.

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When bus starts moving forward, lower part of the person begin to move with the bus whereas the upper part of the body tends to remain in rest due to inertia. Q. Assertion :When a bus starts suddenly, a person standing in it falls backwards.

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And the bus stopped suddenly. I fell down. Because of Newton's Law of Inertia, which states: An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

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When a bus takes a turn, the centrifugal force felt by the passengers, is directed opposite to the direction of the turn. Hence, when a bus takes a right turn, the passengers inside the bus seem to lean towards left.

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Expert-Verified Answer If the bus suddenly moves going to North or forward, the passenger will tend to move backward or South. The passenger's movement is in opposite direction to the bus. The reason behind this one was because of the inertia in motion.

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The energy of the bus has to go somewhere, and the momentum too, as they are independently conserved. Part of the energy goes to heat, in the brakes and on the contact ground/wheels. Heat means photons, so photons may take away some momentum. But most momentum through friction is transferred to the ground .

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When a bus suddenly takes a turn, the direction of motion of bus will change but due to the law of inertia the passengers will be moving in there initial direction of motion unless some external force is exerted on them hence they will experience a force that will push them outward.

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When a bus starts suddenly, the passengers are pushed backwards this happens due to inertia the upper body wants to remain at rest that's why it moves backwards. We are standing in a bus and the bus begins to move suddenly. Now we tend to fall backwards. This is explained by which of Newton's law of motion.

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The bus is on a route that doesn't include stopping there. The bus is going out of service and is not picking up more passengers. The bus is completely full and no-one is getting off at that stop, so no-one will be able to get on and there is no point in stopping.

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Many buses these days are so-called 'kneeling buses. ' They have an air-ride front axle that dumps air when they stop and open the door to put the step closer to the ground for easy entrance/exit.

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If the driver is ahead of schedule, and he/she is at a timing point listed on the schedule, he/she is waiting there so that passengers who would be at the bus stop on time are still able to board.

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This is because of inertia of motion. The part of our body, which is in contact with the bus, changes the direction of motion. However, the rest of the body tries to move in the same direction as before because of inertia of motion. Q.

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