What is the power when a crane lifts a piece of pipe from the ground to a certain height, doing 15000 J of work in 25s? A) 375000 W

Question

What is the power when a crane lifts a piece of pipe from the ground to a certain height, doing 15000 J of work in 25s?
A) 375000 W

B) 600 W

C) 100 W

D) 350 W

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Thông Đạt 4 years 2021-08-02T03:04:27+00:00 1 Answers 29 views 0

Answers ( )

  1. Orla
    0
    2021-08-02T03:05:30+00:00
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    Answer: Option B) 600 W

    Explanation:

    Since power is the rate of work done per unit time

    i.e Power = work/time

    Given that:

    power of a crane = ?

    work done by crane = 15000 J

    Time = 25 seconds

    Power = 15000J / 25s

    Power = 600 watts

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