contestada

If you stood on a planet with four times the mass of Earth, and twice Earth's radius, how much would you weigh?

Respuesta :

Answer:

1/4 times your earth's weight

Explanation:

assuming the Mass of earth = M

Radius of earth = R

∴ the mass of the planet= 4M

the radius of the planet = 4R

gravitational force of earth is given as = [tex]\frac{GM}{R^{2} }[/tex]

where G is the gravitational constant

Gravitational force of the planet = [tex]\frac{G4M}{(4R)^{2} }[/tex]

                                                       =[tex]\frac{G4M}{16R^{2} }[/tex]

                                                       =[tex]\frac{GM}{4R^{2} }[/tex]

recall, gravitational force of earth is given as = [tex]\frac{GM}{R^{2} }[/tex]

∴Gravitational force of planet = 1/4 times the gravitational force of the earth

you would weigh 1/4 times your earth's weight