A crane lifts a 425 kg steel beam vertically a distance of 64 m. How much work does the crane do on the beam if the beam accelerates upward

Question

A crane lifts a 425 kg steel beam vertically a distance of 64 m. How much work does the crane do on the beam if the beam accelerates upward at 1.8 m/s2

in progress 0
Euphemia 3 years 2021-08-17T18:31:21+00:00 1 Answers 66 views 0

Answers ( )

    0
    2021-08-17T18:32:52+00:00

    Answer:

    work done= 48.96 kJ

    Explanation:

    Given data

    mass of  load m= 425 kg

    height/distance h=64 m

    acceleration a= 1.8 m/s^2

    The work done can be calculated using the expression

    work done= force* distance

    but force= mass *acceleration

    hence work done= 425*1.8*64= 48,960 J

    work done= 48.96 kJ

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )