During a race, four competitors of the same weight rode identical bicycles for 10 minutes. At 8 minutes, which bicycle was moving with the greatest velocity?

All the competitors will move with the same velocity.

Explanation:

Here, the situations for each competitor are identical. Thus, they will exert the same force and hence, their velocities at each instants will be identical.

Answer: All of them, Since they were Same weight and rode identical bicycles, Nothing will change.