A man is sitting in a train which is moving with a velocity of 60 km/hour. His speed with respect to the train is:

Options

A. 10/3 m/s
B. 60 m/s
C. infinite
D. zero

Explanation

To solve the problem, we need to determine the speed of a man sitting in a train that is moving at a velocity of 60 km/hour.

### Step-by-Step Solution:

1. **Understand the Situation**: The train is moving at a speed of 60 km/h. The man is sitting inside the train.

2. **Determine the Speed of the Man with Respect to the Train**: When the man is sitting still in the train, he is not moving relative to the train. Therefore, his speed with respect to the train is 0 km/h.

3. **Conclusion**: The speed of the man with respect to the train is 0 km/h.

### Final Answer:
The speed of the man with respect to the train is **0 km/h**.