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Class 9
Physics :-NCERT Solution - Work, Energy And Power

Page No 152:
Question 1:

What is the kinetic energy of an object?


Answer:

Kinetic energy is the energy possessed by a body by the virtue of its motion. Every moving object possesses kinetic energy. A body uses kinetic energy to do work. Kinetic energy of hammer is used in driving a nail into a log of wood, kinetic energy of air is used to run wind mills, etc.

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