It might be pull at a force of 100 N. I might be wrong.
The water i believe is the answer.
Answer: Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device or machine system. The device preserves the input power and simply trades off forces against movement to obtain a desired amplification in the output force. The model for this is the law of the lever.
Explanation:
Waning Crescent lasts a week.
One week before any point in that week, it's a Waning Gibbous.