Question

Is there a force of friction between the wheels of a moving train and iron rails?
If yes, name the type of friction. If an air cushion can be introduced between the
wheel and the rail, what effect will it have on the friction?

Answer 1

Answer:

Rolling friction

Explanation:

Because the wheels are moving on rails

Answer 2

Yes, there is a force of friction between the wheels of a moving train and iron rails because both the surfaces are in contact. ⇒ The type of friction present is rolling friction.