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Vaibhav Sehgal from DELHI PUBLIC SCHOOL, asked a question
Subject: Science , asked on 12/1/12

Derivation of law of conservation of energy.

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Vijay Yadav , Meritnation Expert added an answer, on 16/1/12

Refer the link 

Energy conservation

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Anurag Anand From Kendriya Vidyalaya, added an answer, on 12/1/12
26 helpful votes in Science

Law of conservation of energy states that energy cant be created and cant be destroyed. but it can only transform from its one form to another.

Potential energy + kinetic energy = constant

mgh + 1/2 mv2 = constant

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Vaibhav Sehgal From Delhi Public School, added an answer, on 13/1/12

 I want the whole derivation of law of conservation of energy.

plz ....Aditi Kannamwar...

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Aditi From Ambuja Vidya Niketan, Upperwahi, added an answer, on 12/1/12
3 helpful votes in Science

Law of conservation of energy (during a free fall )

Let a object be 'm ' , lay on point 'a ' and is lifted to pt 'h ' and stopped at pt 'b '

therefore work done on the body is mgh.

as the body is at rest at 'b '

Kinetic energy at 'b ' = 0

Potential energy at 'b ' =mgh

Therefore total energy at 'b ' =mgh +0

                                                 =mgh

 

the answer is really very long 

if u want it just inform me I 'll give.

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aish13 From Darbari Lal D A V Model Sr.sec School, added an answer, on 12/1/12
34 helpful votes in Science

agree wid above

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Sudhanshu Singh From Kendriya Vidyalaya No.1, added an answer, on 12/1/12
2 helpful votes in Science

Energy cant be created nor be destroye only it can be transformed..

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