question_answer

The acceleration due to gravity on the surface of a planet whose mass is same as that of the earth and radius is half of that of the earth is: (mass of earth \[=\,6\times {{10}^{24}}kg,\] Radius of earth \[=\,6.4\,\times \,{{10}^{3}}\,km)\]

A) \[35.08\,m/{{s}^{2}}\]             

B) \[39.08\,m/{{s}^{2}}\]

C) \[28.08\,m/{{s}^{2}}\] 

D)        \[9.08\,m/{{s}^{2}}\]

E) None of these