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A plumb bob is hung from the ceiling of a train compartment accelerating at 'a' along a straight horizontal track.The string supporting the bob makes an angle tan inverse (a/g) with the normal to the ceiling.Suppose the train moves on an inclined straight track with uniform velocity.If the angle is same,can a person sitting inside, tell by looking at the plumb line whether the train is accelerated on horizontal straight track/it is going on an incline?If yes,how?If no,suggest a method to do so.

Amit Saxena , 11 Years ago
Grade upto college level
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