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A tank contains water of mass $‘ m ’$ to a height $‘ h ’$ . The potential energy associated is

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mgh

\frac{mgh}{2}

Depends upon the radius of the tank

zero

answer is B.

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Detailed Solution

The potential energy associated is

\frac{mgh}{2}

The energy that an object would have if it defied gravity and ascended to a certain height is known as its gravitational potential energy. Here is an example of how gravitational energy is defined.

● Think about a thing with $mass = m .$

● Placed as depicted in the figure, at a height of h from the ground.

We already know that the force needed to lift an object having mass(

m

) equals to

mg

or the weight of the object.
Some work (

W

) is done on the object as it is raised against the pull of gravity.

Work done on the object = force \times displacement .

Force plus displacement equals work done on the object.
Height will be raised to the tank's centre of gravity, or

\frac{h}{2}

.
As a result,

\frac{mgh}{2}

will be the potential energy.

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