The length of the power cord will be equal to 1.2 m.
Describe about the length of power cord?
- The train is moving at a speed of 90 km /hr. Train was moving but the person in the train can be considered to be at rest.
- Shanti is the person travelling on the train. Her cord can be used only by her and the cord length of the phone will be 1.2 m.
- The length can be measured through the distance.
- The unit of length is meter.
- As we know the concept of motion and rest, there only the train in motion, shanti was at rest and shanti's power cord were also in the rest.
- Power cord length will be determined only at the time of manufacturing.
- If the power cord length to be change then the crimping process.
- So, the length will not change suddenly.
The length of the power cord when shanti gets off the train is equal to 1.2 m.
The Correct answer is Option D.
Learn more about motion and rest,
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