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10 cards from this deck
When only conservative forces act, total mechanical energy remains constant
Gravity
KEinitial+PEinitial=KEfinal+PEfinalKE_{initial} + PE_{initial} = KE_{final} + PE_{final}KEinitial+PEinitial=KEfinal+PEfinal
KE=12mv2KE = \frac{1}{2}mv^2KE=21mv2
PE=mghPE = mghPE=mgh
h=dsinθh = d \sin \thetah=dsinθ
Remains constant
KE and PE convert, but total energy unchanged
Joules (JJJ)
Metres per second (ms−1\text{ms}^{-1}ms−1)
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