question_answer

A man leaves his house for a cycle ride. He comes back to his house after half-an-hour after covering a distance of one km. What is his average velocity for the ride?

A) Zero    

B) \[2\,km\text{ }{{h}^{-1}}\]

C) \[10\,km\text{ }{{s}^{-1}}\]     

D) \[\frac{1}{2}\,km\text{ }{{s}^{-1}}\]