When a train starting from rest is uniformly accelerating, a plumb bob hanging from the
Channel: Doubtnut
Date: 2020-02-09

When a train starting from rest is uniformly accelerating, a plumb bob hanging from the roof of a compartment is found to be inclined at an angle of `45^(@)` with the vertical.The time taken by the train to travel a distance of `1//2km` will be nearly