Question

which of the following is not a unit of energy A)W-s B) Kg-m/sec C)N-m D)joule

Answer 1

Hii There!!!

B) Kg-m/sec is not a unit of energy.



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Answer 2

(B) kg-m/sec is not the unit of energy.

Given: 4 options among which one option is not a unit of energy.

To Find: The option which is not a unit of energy

Solution:

• Energy is a quantitative property that is transferred to a body or to a physical system, in the form of heat and light.
• According to the law of conservation of energy, energy can neither be created nor destroyed but it can be transformed from one form to another.
• Energy can also be said to be the capacity to do useful work.
• The dimension of energy is [M L^2 T^-2].
• According to the dimension formula, the unit of energy can be interpreted as kg-m²/sec².
• Other units of energy are W-s and N-m.

• The SI unit of energy is joule ( J ).

So, checking the four options, (B) kg-m/sec is not the unit of energy.

Hence, (B) kg-m/sec is not the unit of energy.

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