Question

Q1) The passengers sitting in a moving train find each other at rest but road side tree in motion . explain the motion in this context.

Answer 1

It is because we are remained at rest but the train which we sat is in motion.so we feel that trees near the track are moving and co passengers who sat behind us remained stationary.

in detail

While travelling in a train it appears so just because of motion. Any object can seem to be in motion to one person but the same can also seem to be at rest to another. In this case if we are sitting inside the train then the trees outside the train appears to be moving backwards but if we are outside the train then they will appear stationary. Similarly inside the train our co- passengers seem to be at rest to us but in relation to a person standing outside they are moving. So it just depends on the position and motion of an object in relation to the observer.