question_answer

The earth circles around the sun once a year. The work which would have to be done on the earth to bring it to rest relative to the sun is, (Ignore the rotation of earth about its own axis) given that the mass of the earth \[=6\times {{10}^{24}}kg\] and distance between sun and earth is 1.5 x 108 km)

A)  \[2.7\,\times {{10}^{30}}J\]                       

B)  \[2.7\times {{10}^{31}}J\]           

C)         \[-2\times {{10}^{33}}J\]             

D)         \[+2.7\,\times {{10}^{33}}J\]