Gravitation Question 37

Question: Mass of moon is [7.34×1022] kg. If the acceleration due to gravity on the moon is [1.4,m/s2] , the radius of the moon is [(G=6.667×1011,Nm2/kg2)] [AFMC 1998]

Options:

A) [0.56×104,m]

B) [1.87×106,m]

C) [1.92×106,m]

D) [1.01×108,m]

Show Answer

Answer:

Correct Answer: B

Solution:

[g=GMR2]

Þ [R=GMg]

Substituting the above values we get [R=1.87×106m.]



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