(a) State the expression for the gravitational potential energy of a body of mass…

PHYSICS · Subjective · AP · Physics 1: Algebra-based · Work Energy and Power · Work Energy and Power

Problem

(a) State the expression for the gravitational potential energy of a body of mass mm kept at a height hh above a chosen reference level. (b) A body initially at height hh is slowly lifted to a new height 3h3h without any change in its mass. By what factor does its gravitational potential energy change? Give a brief explanation based on proportionality. (c) The same body is now modified so that both its mass and the height to which it is raised become double of their original values. Using ratio reasoning, explain how its new gravitational potential energy compares with the original value.

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