I am in a car moving with constant velocity, such that i cannot see what is going on outside.
I dont know whether the car is at rest or in motion. How will I find it out? (Without using any external help! ) like a speedomenter, viewing outside the window etc. I am allowed to keep some instruments in the car.
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2 Answers
62There is no way.
If you look carefully, earth is also moving. But sitting on earth, it is almost impossible to know that we are on earth. I say almost because the earth is not moving in a straight line without acceleration. Earth has its own acceleration. This is because it is moving in a circular motion around sun.
If there are no bumps on the road, it will be impossible to say that the car is moving or not!
33From biological point of view also human can only sense acceleration not constant velocity. Human has got an inbuilt accelerometer but no sppedometer.......