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The acceleration due to gravity of that planet whose mass and radius are half those of earth, will be (g is acceleration due to gravity at earth's surface) (a)2g (b)g (c)g/2 (d)g/4 Answer is: (a)2g

Asked by निकोदिमुस 5th December 2017, 6:58 PM
Answered by Expert
Answer:
M subscript p equals 2 M subscript e
R subscript p equals 2 R subscript e


g e equals fraction numerator G M subscript e over denominator R subscript e squared end fraction

g subscript p equals fraction numerator G M subscript p over denominator R subscript p squared end fraction equals fraction numerator G 2 M subscript e over denominator left parenthesis 2 R subscript e right parenthesis squared end fraction equals fraction numerator 2 G M subscript e over denominator 4 R subscript e squared end fraction equals g subscript e over 2

o p t i o n space c
Answered by Expert 6th December 2017, 11:47 AM
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