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Question

A simple pendulum is hanging from the roof of the bus. The string is inclined towards the rear of the train. What is the nature of motion of the bus?


  1. De-accelerated motion

  2. Uniform motion

  3. Accelerated motion

  4. At rest


Solution

The correct option is C

Accelerated motion


When the bus accelerates, the string attached to the bus will incline towards the rear end of the bus.

Just like how a person falls behind when the bus suddenly accelerates, the string also behaves the same way.

Therefore, the bus is said to be in an accelerated motion.

When the bus is slowing down or retarding, the string will incline towards the front end of the bus. 

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