A person weighing 800 newtons travels to another planet with twice the mass and twice the radius of earth. what is the person's weight on the new plant?

Question

Physics

Alonso Kidd

21 May, 13:35

A person weighing 800 newtons travels to another planet with twice the mass and twice the radius of earth. what is the person's weight on the new plant?

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Answers (2)

Know the Answer?

Gaige Wiley · Answer 1

1600 Newton

800*2 = 1600

Guillermo Thornton · Answer 2

F=m1*m2*G/r2. m1 anf m2 are the masses. G is the universal gravitation constant (=6.673*10^-11). R is distance between m1 and m2. So the earth's mass is 5.98*10^24 kg, m1, person is 800 / 9.81=81.55 kg. Now all we have to do is film in: F = 6.673*10^-11*81.55 kg * (5.98*10^24 * 2kg) / (6.38*10^6*2) ^2 = 399.73 N. You may recalculate, maybe I forgot something, but the formula is right.