Multiple choice general knowledge science & technology

We often tend to fall backwards when a bus, carrying us, just starts moving. It happens because of:

  1. Gravity of the earth.

  2. Inertia of our bodies.

  3. Friction between our feet and the floor of the bus.

  4. Our lack of balance while experiencing sudden change of movement.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When the bus suddenly accelerates forward, our bodies tend to maintain their state of rest (Newton's first law). This inertia causes us to lean backward relative to the now-moving bus.

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