An object that weighs 50 newtons on Earth weighs approximately 20 newtons on the planet Mercury. A rock weighs 100 newtons on Earth. What is the approximate weight of the rock, in newtons, on Mercury?
40
because something that ways 50 newtons here weighs 20 newtons on Mecury so all you do to find out how many newtons a 100 newton object weighs on Mercury multiply it by 2
