Gravitation

Question: Let g be the acceleration due to gravity at earth's surface and K be the rotational kinetic energy of the earth. Suppose the earth's radius decreases by 2% keeping all other quantities same, then

1) g decreases by 2% and K decreases by 4%

2) g decreases by 4% and K increases by 2%

3) g increases by 4% and K increases by 4%

4) g decreases by 4% and K increases by 4%

Solution:

Explanation: No Explanation

Acceleration Due to Gravity

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