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What is work energy theorem?

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What is work energy theorem?
  • 1 answers

Yogita Ingle 5 years, 10 months ago

According to the Work-Energy Theorem, the work done by a net force on an object is equal to the change in its kinetic energy can be proved mathematically as the following:
1/2 mv 2 - 1/2 mu2 = 1/2 m(2ad)
1/2 mv2 - 1/2 mu2 = mad
1/2 mv2 = Final Kinetic energy, K.Ef.
1/2 mu2 = Initial Kinetic energy, K.E.i
According to Newton's Second law of motion, F= ma
work done by the net force W = Fd
So, K.Ef - K.E.I = W

 

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