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Mention the SI unit of torque. Though di...

Mention the SI unit of torque. Though dimensional formula of work and torque is the same, joule is not used to measure torque. Explain why ?

Text Solution

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SIU of torque is Nm. Torque is a vector physical quantity. Work is a scaler physical quantity. Hence joule is not used to measure torque.
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Knowledge Check

  • The unit of work is Joule. The other physical quantity that has same unit is

    A
    Power
    B
    Velocity
    C
    energy
    D
    Force

  • In the above problem at what rate is the work done by the torque at the end of eight second?

    A
    `piWal t`
    B
    `pi^(2)Wal t`
    C
    `pi^(3)Wal t`
    D
    `pi^(4)Wal t`

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