The mass of a certain neutron star is 1.2 × 1031 kg (6 solar masses) and its radius is 5000 m. what is the acceleration of gravity at the surface of this condensed, burned-out star
By definition we have that gravity is defined as: g = G * M / r ^ 2 Where, M = Mass r = radius G = 6.67 * 10 ^ -11 Nm ^ 2 / kg ^ 2 Substituting the values we have: g = (6.67 * 10 ^ -11) * (1.2 * 10 ^ 31) / (5000) ^ 2 g = 3.2016E + 13 m / s ^ 2 Answer: the acceleration of gravity at the surface of this condensed, burned-out star is g = 3.2016E + 13 m / s ^ 2
