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Work-Energy Principle in M2? watch

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    Can anyone explain? Why does loss in KE = Gain in GPE + Work Done. I don't get the work done bit.
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    (Original post by KyleBroflovski)
    Can anyone explain? Why does loss in KE = Gain in GPE + Work Done. I don't get the work done bit.
    The work done just means other forms of energy the KE has been converted to. Some KE will be converted into heat when moving along a surface, due to the fact that it does work against friction.
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    (Original post by PhyM23)
    The work done just means other forms of energy the KE has been converted to. Some KE will be converted into heat when moving along a surface, due to the fact that it does work against friction.
    Oh, so some KE is turned into heat from friction and the rest is stored as gravitational potential?
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    (Original post by KyleBroflovski)
    Oh, so some KE is turned into heat from friction and the rest is stored as gravitational potential?
    That's correct, but of course this only applies to a rough surface. With a smooth surface there's no friction to act against so all KE is converted to GPE when a particle is moving up a slope
 
 
 
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