Question

If you weigh 660 n on the earth, what would be your weight on the surface of a neutron star that has the same mass as our sun and a diameter of 19.0 km ? take the mass of the sun to be ms = 1.99×1030 kg , the gravitational constant to be g = 6.67×10?11 n?m2/kg2 , and the acceleration due to gravity at the earth's surface to be g = 9.810 m/s2 . express your weight wstar in newtons.

Answer 1

Gravity:

F = mMG/r²

m = 660/9.81
M = 1.99 * 10³⁰
G = 6.67 * 10⁻11
r = 1.9 * 10⁴

Solve for F, wich represents the weight.