39.72 m/s is the velocity of the body.
Answer:
Force is equal to the change in momentum per change in time.
Explanation:
That situation is described by Newton's Second Law of Motion. According to NASA, this law states, "Force is equal to the change in momentum per change in time. For a constant mass, force equals mass times acceleration." This is written in mathematical form as Force = mass.
It is very important for scientists to replicate each other experiment because this will help to determine if important scientific results are repeatable. The correct option is A. Scientific results presented by a scientist should be reproducible anywhere in the world, without this, the results can not be accepted as theory.
