A student of mass 40kg takes 10s to run up a flight of 50steps. If each step is 15cm high, calculate the Potential Energy of the student at

Question

A student of mass 40kg takes 10s to run up a flight of 50steps. If each step is 15cm high, calculate the Potential Energy of the student at the maximum height.​

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Thanh Thu 2 months 2021-08-18T06:54:48+00:00 1 Answers 0 views 0

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    2021-08-18T06:55:48+00:00

    Answer:

    2943 J

    Explanation:

    Potential energy = mass x acceleration due to gravity x height in meters

    (P.E. = mgh)

    Substitute the given numbers: (I take acceleration due to gravity as 9.81 m s^-2)

    PE = 40 x 9.81 x (0.15×50)

    PE = 2943 J

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