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Potential energy and kinetic energy are types of:
1. Thermal energy
2. Electrical energy
3. Mechanical energy
4. Magnetic energy

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Correct Answer - Option 3 : Mechanical energy

CONCEPT:

Potential Energy: 

  • The energy of an object obtained by doing work against the conservative forces like spring force and gravitational force is called potential energy.
  • The potential energy of an object at a height h from the ground is given as

⇒ P = mgh​

Kinetic Energy: 

  • The energy obtained by an object by virtue of its motion is called kinetic energy.

\(\Rightarrow K = \frac{1}{2}mv^2\)

K is kinetic energy, v is the speed of the object, m is the mass of the object.

  • Mechanical Energy: The sum of potential energy and kinetic energy is called mechanical energy.


EXPLANATION:

  • From the above, it is clear that the total mechanical energy is the sum of potential energy and kinetic energy. Therefore option 3 is correct.

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