Question

A person is sitting facing the engine in a moving train. He tosses a coin. The coin falls behind him. This shown that the trains is

• A. Moving forward with a finite acceleration
• B. Moving forward with a finite reterdation
• C. moving backward with a uniform speed
• D. moving forward with a uniform sped

Answer 1

The correct option is A Moving forward with a finite acceleration

on the frame of reference of train, a pseudo force on coin must act in backward direction for it to move behind, which is possible only when the train is moving forward and gaining speed and also when the train is moving backward and losing speed.

The coin falls behind him it means the velocity of train was increasing otherwise the coin fall directly into the hands of
thrower.