A star , 2 .5 times the mass of sum , collapse to a size of12 km with a speed of1.2 rps . T the object placed on thesurface remains stuck to the surface due to gravity ? [ mass of sun =2xx10^(30)kg]

A star , 2 .5 times the mass of sum , collapse to a size of12 km with

1.	A star , 2 .5 times the mass of sum , collapse to a size of12 km with a speed of1.2 rps . T the object placed on thesurface remains stuck to the surface due to gravity ? [ mass of sun =2xx10^(30)kg]
Answer» SOLUTION :`g=(GM)/(R^(2))=(6.67xx10^(-11)xx25xx2xx10^(30))/(12xx10^(3))^(2)` `g=0.2316xx10^(13)ms^(-2)` `omega^(2) R = (1.2xx2pi)^(2)(1.2xx10^(7))=6.8xx10^(8)ms^(-2)` SINCE `g " GT"omega ^(2)R` , the object remains STUCK to its surface.