Question

Why do passengers in a bus tend to fall back ward when it starts suddenly

Answer 1

due to inertia of rest. when the bus was in rest the body of the passenger was also in rest but when the bus suddenly started the bus came in motion but the body was at rest...........

Answer 2

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When passenger is sitting or standing in a stationary bus both the bus and the passenger are at rest.

When the bus starts suddenly the lower part of the passengers's body starts moving forward with the bus.

But the upper part of the body tends to remain in the state of rest due to inertia of rest.

As a result, the passengers tends to fall backwards.

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