Answer:
W' = 1.66 x 10¹⁴ N
Explanation:
First, we will calculate the mass:
where,
W = weight on earth = 690 N
m = mass = ?
g = acceleration due to gravity on earth = 9.8 m/s²
Therefore,
Now, we will calculate the value of g on the neutron star:
where,
g' = acceleration due to gravity on the surface of the neutron star = ?
G = Gravitational Constant = 6.67 x 10⁻¹¹ N.m²/kg²
M = Mass of the Neutron Star = 1.99 x 10³⁰ kg
R = Radius of the Neutron Star = 15 km/2 = 7.5 km = 7500 m
Therefore,
Therefore, the weight on the surface of the neutron star will be:
<u>W' = 1.66 x 10¹⁴ N</u>