Multiple choice

If a train suddenly comes to a halt, the passengers get a sudden shock due to

  1. the law of Conservation of Momentum

  2. the law of Inertia

  3. the law of Gravitation

  4. the law of Equal Action and Reaction
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B Correct answer
Explanation

When a moving train suddenly stops, the passengers' bodies continue moving forward due to inertia - the tendency of objects in motion to stay in motion. This sudden deceleration causes the passengers to jerk forward relative to the train, creating the sensation of a shock. The law of inertia (Newton's first law) explains this phenomenon where a body maintains its state of motion unless acted upon by an external force.

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