If your mass is 50 kg, then you weigh about 18 pounds on the moon, about 39.6 pounds on Mars, about 110 pounds on earth, and exactly zero while you're coasting through space at constant speed on your way from one of them to another. Your 50kg doesn't change. That's your 'mass', not your weight.
1kg-50kg. There is a rabbit that big! There are no 50kg rabbits!! Domestic rabbits range between 2 and 20 pounds. Answer #3 There are Flemish Giants that tip the scale at 30#! tHERE IS NO TOP WEIGHT ON SEVERAL BREEDS.
If your mass is 50 kg, then you'll weigh 490 newtons (110.2 pounds) on earth, 80 newtons (18 pounds) on the moon, and 186 newtons (41.8 pounds) on Mars. Your mass doesn't change; it's 50 kg no matter where you are.