right whozum bt this .5mv*2 is coming frm where ?i mean dat 5 mv*2 is of the Earth as measured by the train observer n this energy is coming frm where it must have some sort of energy
similarly an observer on Earth will measure train s energy as 5 mv * 2
n this is frm fuel so Earth should...
hello i m new to this forum n dis is my first topic i was reading about relative motion yesterday that if a train is movin with 90 km to east the observer in the train will find dat train is stationary and the Earth is moving backwards similarly for an observer on Earth train is moving n Earth...