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  1. Why do passengers tend to fall sideways when the bus takes a sharpu turn?
  2. Why should a passenger hold on to prevent himself from swaying in a turning bus?
  3. Why do passengers tend to fall back when it starts suddenly?
  4. Why do passengers jumping out of a rapidly moving bus fall forward with his face downwards, if he does not run forward?
  5. Why does a passenger jumping out of a rapidly moving bus fall forward with his face downwards?
  6. Why can dust be removed by shaking it, or beating it by a carpet?
  7. Why does a bullet when fired against aglass windowpane make a hole in it, and theglass panewill smash it?
  8. Why does an athlete take a longer jump if he comes running from a distance than when he jumps suddenly from the take-off line?
  9. What happens when you shake a wet piece of cloth? Explain, why?
  10. Why is it advised to tie a rope on the luggage while you travel by the bus?
  11. How does a boat move forward into the water whenthe boatmanpresses one end of the pole against the ground?
  12. Why is it difficult for a fireman to hose, which ejects large amount of water at ahigh velocity?

3)when the bus starts to move the passengers tend to fall back,this is because the passengers are at rest and they are not attached to the bus.when the bus starts and is in motion the passengers are still at rest so they tend to fall backwards.

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All because of inertia

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pls explain

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When a passenger jumps out of a fast moving bus, hi feet, on touching the groing come to rest due to inertia of motion., if he doesn't run forward he falls with his face downwards.
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No idea
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1)As the inertia of the body's upper part makes it forward just like it was  moving before but the lower part of the body turns to the side along with the bus and due that the upper body tends to fall on the side as it's inertia doesn't allow it to move in the direction the bus is moving at that instant. That's why the passengers tend to fall sideways when the bus takes a sharp turn. 
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ans of Q2. a passenger should hold on himself to swaying in a turning bus as if he will not do so then due to the inertia of motion his body will also move and he can get hitted to the floor of the bus
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14 : when a person jumps from a moving bus, his feet comes to rest while touching the surface of the ground, while his body's upper part continues to move forward. For this reason he falls forward with his head downwards
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