Greg F. answered 04/12/20
Math Expert|Masters in Electrical Engineering|7 Years Experience
Remember that there is a difference between mass and weight.
Mass is the amount of matter that exists. Mass remains constant no matter where it is.
Weight is a measurement of force. Weight changes based on how much the mass is being accelerated.
Also remember from Newton's second law that F = m*a, where F is the force in Newtons, m is the mass in kilograms, and a is the acceleration. So you can use that formula to find the weight (i.e. force) keeping in mind that the acceleration due to earth's gravity is 9.8 m/s^2