Kinetic energy of a system is always conserved, no matter what internal and external forces on the body are present

True

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False

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Solution

The correct option is B False
The statement os totally wrong,

We know,

When external force acts on a body, its net velocity increases which results
in increasing speed, and hence Kinetic Energy associated with the body
also increases.

Hence it is clear that Kinetic energy isn't conserved.

Hence the statement is proven false.

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Similar questions

(b) Total energy of a system is always conserved, no matter what internal and external forces on the body are present.

(d) In an inelastic collision, the final kinetic energy is always less than the initial kinetic energy of the system.

(b) Work done by a body against friction always results in a loss of its kinetic / potential energy.

(c) The rate of change of total momentum of a many-particle system is proportional to the external force / sum of the internal forces on the system.

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