Question

Mass of a body is 25 kg. What is its weight in Newton on earth? The body is carried to a planet whose mass is two times the mass of earth and radius is half that of earth. What will be the mass and weight of the body on the planet? (Take the value of g on earth as 10 m s–2) please answer fast

Answer 1

According to the question the weight on earth will be = 250 as weight is mg.
The value of g on other planet will be
g = G2M/(R1/2)^2 which will give you the value as G8M/R^2 and that value is 10 as mentioned above so it will be 8 times more thus giving the value of g as 80 .. the mass will be 25 kg same and weight will be 25*80 = 2000 kg