If I work out rotational energy to be 102.2J which equals kg.M/s^2, and I hadn’t factored time into it, would that be Joules per second? So

Question

If I work out rotational energy to be 102.2J which equals kg.M/s^2, and I hadn’t factored time into it, would that be Joules per second? So Watts? What would I need to do to find how much energy at the same rate, for 30minutes?

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Helga 5 years 2021-09-04T23:33:50+00:00 1 Answers 13 views 0

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  1. Calantha
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    2021-09-04T23:35:01+00:00
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    Answer:

    0.057 joules is needed to create the total rotational energy each second.

    Explanation:

    The energy rate is the ratio of total energy to time, which coincides with the definition of power at constant rate:

    \dot W = \frac{\Delta E}{\Delta t}

    \dot W = \frac{102.2\,J}{\left(30\,min\right)\cdot \left(60\,\frac{s}{min} \right)}

    \dot W = 0.057\,\frac{J}{s}

    \dot W = 0.057\,W

    0.057 joules is needed to create the total rotational energy each second.

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