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State and prove the Work energy …

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State and prove the Work energy theorem

Posted by Saurabh Mishra 6 years, 9 months ago

CBSE > Class 11 > Physics

2 answers

Nishant Verma 6 years, 9 months ago

Work done by all force equal to Change KE

A Mittal 6 years, 9 months ago

According to Work - Energy theorem, work done by a net force in displacing a body is equal to change in kinetic energy of the body. s here is the displacement. Work done is given by v2 – u2 = 2as => as = ½ (v2 – u2 ) F = ma W = Fs => W = mas => W = ½m (v2 – u2 ) Work done increases the KE of the body KE = W => KE = ½m (v2 – u2 )

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