Question

A train consists of an engine and 3 coaches, first coach is closest to the engine, third coach is farthest from engine. The train is moving with a constant acceleration a. The mass of each coach is M. The force exerted by the first coach on the second coach will be:

• A. Ma
• B. 2Ma
• C. 3Ma
• D. 4Ma
• E. $\sqrt{2}$Ma

Answer 1

Answer: (B)

2Ma

Answer 2

The correct answer is (B): 2Ma