Q.7 what is the escape velocity of the neutron star in question 6?

Ans:
       m = 3.96x10^30 Kg
       r = 10Km
       G = 6.67x10^-11 N/kg^2
     
       formula = (2 x G x m)/r^2
               = (2 x 6.67x10^-11 x 3.96x10^30) / 10^2
               = 5.28x10^18 km/s