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Question-9215




Question Number 9215 by arinto27 last updated on 23/Nov/16
Answered by ridwan balatif last updated on 23/Nov/16
benda dititik tertinggi memiliki energi potensial sebesar E_o   dimana E_o =mgh (misalkan dititik tertinggi, kita beri nama titik A)  EM_A =EM_p         E_o =Ek_p +Ep_p   mgh =Ek_p +mg((1/4)h)      Ek_p =(3/4)mgh      Ek_p =(3/4)E_o
$$\mathrm{benda}\:\mathrm{dititik}\:\mathrm{tertinggi}\:\mathrm{memiliki}\:\mathrm{energi}\:\mathrm{potensial}\:\mathrm{sebesar}\:\mathrm{E}_{\mathrm{o}} \\ $$$$\mathrm{dimana}\:\mathrm{E}_{\mathrm{o}} =\mathrm{mgh}\:\left(\mathrm{misalkan}\:\mathrm{dititik}\:\mathrm{tertinggi},\:\mathrm{kita}\:\mathrm{beri}\:\mathrm{nama}\:\mathrm{titik}\:\mathrm{A}\right) \\ $$$$\mathrm{EM}_{\mathrm{A}} =\mathrm{EM}_{\mathrm{p}} \\ $$$$\:\:\:\:\:\:\mathrm{E}_{\mathrm{o}} =\mathrm{Ek}_{\mathrm{p}} +\mathrm{Ep}_{\mathrm{p}} \\ $$$$\mathrm{mgh}\:=\mathrm{Ek}_{\mathrm{p}} +\mathrm{mg}\left(\frac{\mathrm{1}}{\mathrm{4}}\mathrm{h}\right) \\ $$$$\:\:\:\:\mathrm{Ek}_{\mathrm{p}} =\frac{\mathrm{3}}{\mathrm{4}}\mathrm{mgh} \\ $$$$\:\:\:\:\mathrm{Ek}_{\mathrm{p}} =\frac{\mathrm{3}}{\mathrm{4}}\mathrm{E}_{\mathrm{o}} \\ $$

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