Question

A train moving in a straight track covers equal displacements in equal intervals of time, then it moves:

• A. with uniform acceleration equal to 0
  
• B. in uniform motion.
• C. with uniform speed.
• D. with uniform velocity.

Answer 1

Answer: (A), (B), (C), (D)

The correct options are
A with uniform acceleration equal to 0
B in uniform motion.
C with uniform speed.
D with uniform velocity.

Velocity of train $v=\frac{S}{t}$

where $S$ is the displacement of train in time $t$.

Thus if the train covers equal displacements in equal interval of time, then it is said to move with constant or uniform velocity.

Also, the train moves in a straight line, thus it moves with uniform speed.

A motion of a body is said to be an uniform motion if moves with uniform velocity.

Constant speed (or velocity) implies that acceleration of the train is zero.