I'm not sure about 15 days. but there are two people whom I know. 1. he lost 15kg in 5weeks(diet + exercise at least 45minutes), and 2nd 9kg in 5 weeks(meal replacement).
15days is practically almost impossible unless you weight more than 100kg(200lbs).
getting an less fat less oil and doing work or being fasting for 2 noons
There are various ways to lose 15 kgs in 55 days. The best option is regulating your diet while taking relevant exercises.
The gravitational force between a mass of 20kg and a mass of 100kg that are 15 meters apart is:F = 5.9326933333333E-10
To lose 15 pounds in 21 days one needs to eat a healthy diet. A low carb diet is a good way to lose unwanted weight and exercise is also important.
You can't lost that much in 2 days without lipo.
On Earth, 20kg is 196 newtons or 44.1 lbs.
a 15 year old shouldn't be losing 5 pounds in 5 days unless your like obese. any weight lose has to be done with progression, you wouldn't loose fat in 5 days either you would just lose water weight. drink A LOT of water if you want to loose weight
not possible. you would pass out form starvation. or malnutrition.
Losing 15 pounds in eleven days is not possible or healthy. If losing fifteen pounds is a goal then what should happen is eat healthy foods and get proper exercise. By doing that then the fifteen pounds that you want to lose will come off in time. So simply losing 15 pounds in eleven days is not healthy and purely impossible.
You can't - even if you starve yourself (which is dangerous) you could not lose that much weight in 14 days.
About 20kg of force.
You have to know that there is NO healthy way to lose weight in that short amount of time. The healthy amount to lose for a week is one pound.