Two trains are travelline at equilateral .Train A is travelling in the direction of earths spin.Other train B is travelling in opposite direction of earths spin.Which trains wheels will wear first?and why?
(a) Train B
(c) none of these
(d) Train A

• In either of the directions train does not lose contact with the ground.So there is no question of which
  train's wheels wear out quickly. Same force is acted upon both the trains.
  
• 8 years agoHelpfull: Yes(0) No(0)
• Train B . bcoz the friction between the railway track and the wheels of the train will be in opposite direction.Where as for train A it's in same direction. SO the B train's wheels wear out slightly first.
• 8 years agoHelpfull: Yes(0) No(1)
• Train A.. because train A travel along with the earths spin...
• 8 years agoHelpfull: Yes(0) No(0)