Question

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

Answer 1

Kinetic Energy:

The energy possessed by an object due to its motion is called as kinetic energy.

Derivation:

Let us consider an object of mass "m" which is at rest on smooth horizontal plane.

Let a Force ,F acts on the object and let the object from rest moves from point A to point B and covers a displacement S.

The Work done by Force on the object is :

Workdone = Force x displacement.

W=F×S ____(1).

From third equation of motion;

V 2−U 2=2aS

S= 2aV 2 −U 2 ______(2)

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