1. At present 'g' for the earth is 9.8 m/s2. If the earth shrinks to 1/4th of present radius, its mass remaining the same, what will be new value of g ?
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Answer:
Acceleration of gravitation, a=
R
2
GM
Where,
M is mass of earth and R is separation between both masses.
If volume is reduce, keeping mass and separation between them same then.
From the formula it is clear that acceleration of gravity will remain constant.
Hence, value of gwill be 9.8ms
−2
Explanation:
okay
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