Question

Write the dimensional formula of torque.



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Answer 1

Write the dimensional formula of torque.

Answer:

The SI unit for torque is Newton- meter as we know that the unit of force is newton which is equal to Force=mass× acceleration. The SI unit of mass is Kilogram and acceleration is meter/sec2. Hence the dimensional formula of torque is ML2T−2.

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Answer 2

Answer:

Torque has the dimension of force times distance, symbolically T−2L2M. Although those fundamental dimensions are the same as that for energy or work, official SI literature suggests using the unit newton metre (N⋅m) and never the joule.

Dimension: M L2T−2

In SI base units: kg⋅m2⋅s−2

SI unit: N⋅m