a 40kg load is raised to a height of 25m. If the operation requires 1 min, find the power required​

Question

a 40kg load is raised to a height of 25m. If the operation requires 1 min, find the power required​

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Hải Đăng 4 years 2021-08-15T09:29:45+00:00 1 Answers 12 views 0

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  1. minhkhang
    0
    2021-08-15T09:30:50+00:00
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    Answer:

    163.33 Watts

    Explanation:

    From the question given above, the following data were obtained:

    Mass (m) = 40 Kg

    Height (h) = 25 m

    Time (t) = 1 min

    Power (P) =..?

    Next, we shall determine the energy. This can be obtained as follow:

    Mass (m) = 40 Kg

    Height (h) = 25 m

    Acceleration due to gravity (g) = 9.8 m/s²

    Energy (E) =?

    E = mgh

    E = 40 × 9.8 × 255

    E = 9800 J

    Finally, we shall determine the power. This can be obtained as illustrated below:

    Time (t) = 1 min = 60 s

    Energy (E) = 9800 J

    Power (P) =?

    P = E/t

    P = 9800 / 60

    P = 163.33 Watts

    Thus, the power required is 163.33 Watts

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