3. Why is it advised to tie any luggage kept on the roof of a bus with a rope?
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Explanation:
- It is advised to tie any luggage kept on roof of a bus with rope in order to prevent falling of the object due to sudden accleration or deceleration of the bus.
- Falling of the object is in accordance with the first law of newtonian mechanincs which states that an object tends to continue in its state of motion until an external force is applied on it
- The rope provides the necessary resistance force to prevent falling of object backward or forward during acceleration or deceleration of bus respectively.
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