1.

 The escape velocity for a body of mass 1 kg from the earth surface is \[11.2\,\,km{{s}^{-1}}.\] The escape velocity for a body of mass 100 kg would be                      [DCE 2003]

A.             \[11.2\times {{10}^{2}}\,km{{s}^{-1}}\]
B.             \[11.2\,\,km{{s}^{-1}}\]
C.             \[11.2\,\times {{10}^{-2}}\,km{{s}^{-1}}\]                     
D.             None of these
Answer» C.             \[11.2\,\times {{10}^{-2}}\,km{{s}^{-1}}\]                     


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