Question

why joule (J) is also said or called as Nm?

Answer 1

Answer:

What you mean when you say "Nm = J" is that dimensionally speaking, torque and work done have the same units. However, they have completely different physical meaning. Hence, in order to separate energy from torque, physicists call the units of torque Nm and energy Joule.

Answer 2

Answer:

Nm = J" is that dimensionally speaking, torque and work done have the same units. However, they have completely different physical meaning. Hence, in order to separate energy from torque, physicists call the units of torque Nm and energy Joule.

Explanation:

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