Question

Explain two example that a body may posses a mechanical energy even when it is not in motion

Answer 1

Answer:

A body may posses mechanical energy when it is not in motion .

For example :

Any body at height .

Mechanical energy will be possess by virtue of its position

Answer 2

Mechanical energy is also known as total energy possessed by any body it is given as sum of kinetic and potential energy of the body

Explanation:

• Mechanical energy is the sum of kinetic energy and potential energy possessed by the body hence is known as total energy possessed by the body

                      Mechanical energy = Kinetic energy + Potential energy

Examples :-

1. Whenever a body is raised from ground level to any height is possess potential energy in it as it changes its position with respect to ground, it does not contain any motion in it since it have mechanical energy which is equal to the potential energy possessed by the body                                                   Potential energy = m g h where, m= mass of the body, g= acceleration due to gravity, h= height up to which the body is raised from the ground
2. Another example is of a spring, when is spring is stretched by applying some force is acquire potential energy in it as the position of the spring is changed again it have some mechanical energy without containing any motion in it

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