Question

Find the expression for kinetic energy of a body of
mass m moving at a speed v.​

Answer 1

Answer:

Derive the expression for of K.E. of mass m moving

with velocity (v).

oe W=FxS .

e V2-U2=2aS.

e S=2aV2-U2 (2)

e F=ma.

o W=2am=a=*(V2-U2)

» As we have assumed object is at rest, U=0.

न W=2mV2.

Answer 2

Answer:

Kinetic Energy = (1/2) m v²

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