1.

 The escape velocity from earth is \[{{v}_{es}}.\] A body is projected with velocity \[2{{v}_{es}}\]with what constant velocity will it move in the inter planetary space                                [DCE 2002]

A.             \[{{v}_{es}}\]
B.             \[3{{v}_{es}}\]
C.             \[\sqrt{3}{{v}_{es}}\]           
D.             \[\sqrt{5}{{v}_{es}}\]
Answer» D.             \[\sqrt{5}{{v}_{es}}\]


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