usaha dan energi / effort and energy

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usaha dan energi / effort and energy Powered By Docstoc
					                                                          USAHA –ENERGI
                                       ________________
                                  1.   w  F cos  s        α = sudut kemiringan
                                     __________              v = kecepatan
                                          1
                                  2. Ek  mv 2              w = usaha
                                          2
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                                                             F = Gaya

                                  3.   Ep  m  g  h        s = jarak
                                                             Ep = Energi Potensial

                                  4.   Emek  Ep  Ek        m = massa benda
                                       ______________        g    = percepatan gravitasi


                                  5.   w  Ek               h = ketinggian benda dari tanah
                                                             Ek = energi kinetik


                                  6.   w  Ep               Em = Energi mekanik


                                  7. HKE (Hukum Kekekalan Energi)
                                       Ek1  Ep1  Ek2  Ep2

                                                             ------o0o-----

				
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