Question

Mechanical energy of a body includes:(a) kinetic energy only (b) potential energy only (c) kinetic energy and potential energy (d) none of these​

Answer 1

option c is the correct answer please follow me...

Answer 2

Mechanical Energy of a body includes both kinetic energy and potential energy.

Detailed discussion:

• Kinetic Energy is a sub-type of mechanical energy which is present in our body by the virtue of its motion.

• Potential Energy is a sub-type of mechanical energy which is present in a body by the virtue of its position in a particular field.

For example : a plane of mass m moving with velocity v at a height h from tbe earth surface has the following mechanical energy:

$1) \: KE = \dfrac{1}{2} m {v}^{2} \\ 2) \: PE = mgh$

Hence, total energy will be :

$\therefore \: TE = PE + KE$

$\boxed{ \implies\: TE = \dfrac{1}{2} m {v}^{2} + mgh}$

Hope It Helps.