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![[Post New]](/templates/default/images/icon_minipost_new.gif) 16 May 2008 20:43:01 IST
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relatoin between KE& PE of a falli when it is at a height h ......if d total height is H
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16 May 2008 20:49:47 IST
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K.E + P.E = mgH
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"Imagination is more important than knowledge."
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16 May 2008 20:52:34 IST
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ok assuming the body was at rest at hieght H its total energy was its potential energy=mgH
at hieght h its total energy will be constant mgH by law of consetrvation of energy
and P.E=mgh
P.E+K.E=total energy=mgH
and hence
P.E=mgh
K.E=mg(H-h)
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16 May 2008 20:56:31 IST
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WHEN IT IS AT A HIEGHT OF H THE ENERGY IS MGH
AT THE HIEGHT OF h THE P.E IS MGh
K.E=MGH-MGh=MG(H-h)
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Renewed shall be blade that's broken
The crown less again shall be king.
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