Why K.E and P.E are equal in a falling object?

One of the most fundamental concepts in physics is energy. It's difficult to define what energy actually is, but one useful definition might be "a measure of the amount of change taking place within a system, or the potential for change to take place within the system".

As an object falls its potential energy decreases, while its kinetic energy increases. The decrease in potential energy is exactly equal to the increase in kinetic energy.

In a completely free state, the total energy is zero

Total energy= Potential energy +Kinetic energy

But potential energy is negative and the Total energy-free state is zero

T.E. =P.E.(-ve) +K.E.

0=P.E.(-ve)+K.E.

P.E.(+ve)=K.E.

That is potential energy equal to kinetic energy

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Updated on: 10-Oct-2022

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