Answer:
by letting the oil float to the top and skimming it off
Explanation:
Explanation:
why u want to know why u disturb ur mind by things which are already written in books
1. constant speed is a steady speed from start to finish, instantaneous is not constant from start to finish.
2. The average speed of the marble is 5 m/s (meters per second).
3. Rider 1 will arrive at the destination before Rider 2.
Hope This Helps! : )