Physics, asked by aadi12345678912, 1 year ago

State work-energy theoram.prove it for variable force

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Answered by Anonymous
4
\huge\mathfrak{Answer}

\bold{Work\:Energy\: Theorem}

✔✔ Work energy theorem states that the change in kinetic energy of an object is equal to the net work done on it by the net force. Hence, work done on a body by a force is equal to the change in its kinetic energy .

\huge\mathfrak{Thanks}
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Answered by doctorshifa228
0

theorem

it states that work done by a force acting on a body is equal to the change in kinetic energy of the body

prove

we know v^2 - u^2 = 2.a.s ..........(1)

multiply each term of eqn (1) by m/2

1/2 mv^2 = final k.e

1/2 mu^2 = initial k.e

k.e f- k.e i =mas

ma=f

k.e f - k.e i = f.s

W = K.E F - K.E I

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