Its momentum is 7 km/hr. Its acceleration is 7 km/hr. Its displacement is 7 km/hr. Its average speed is 7 km/hr.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: A sailboat travels 35 km in 5 hr. Which of the following describes the motion of the sailboat?
Possibilities:
- Its momentum is 7 km/hr.
- Its acceleration is 7 km/hr.
- Its displacement is 7 km/hr.
- Its average speed is 7 km/hr.

Its average speed is 7 km/hr.