1.

When a space ship is at a distance equal to two earth's radius from the centre of the earth, the gravitational acceleration is

A.  \[\text{19}.\text{6 m}/{{\text{s}}^{\text{2}}}\]                
B.  \[\text{9}.\text{8 m}/{{\text{s}}^{\text{2}}}\]
C.  \[\text{4}.\text{9 m}/{{\text{s}}^{\text{2}}}\]                  
D.  \[\text{2}.\text{45 m}/{{\text{s}}^{\text{2}}}\]
Answer» E.


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