Question

A train takes $2hr$ to reach station $B$ from station $A$ and then $3hr$ to return from station $B$ to station $A$. The distance between the two stations is $200km$. Find the average velocity of the train.

• A. $200kmph$
• B. $40kmph$
• C. $80kmph$
• D. $0kmph$

Answer 1

Answer: (D)

$0kmph$

Displacement of the train = Final position of train - Initial position of the train

Here, the final and initial position of the train is the same, it starts from station $A$ and finally, it reaches station $B$.

displacement = zero
Therefore,

Average velocity $=\frac{Displacement}{TotalTime}=\frac{0km}{5h}=0kmph$