Let g be the acceleration due to gravity at the earth's surface and K the rotational kinetic energy of the earth. Suppose the earth's radius decreases by 1%. Keeping all other quantities con

Question

Let g be the acceleration due to gravity at the earth's surface and K the rotational kinetic energy of the earth. Suppose the earth's radius decreases by 1%. Keeping all other quantities constant, then

TestHub · Accepted Answer

% change in g = ( − 2 ) ( − 1 ) = + 2 % Angular momentum is constant. K ∝ R − 2 % change in K = ( − 2 ) ( − 1 ) = + 2 %

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