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20 December, 08:20

If it takes you 30 seconds to move a chair 20 meters across the floor, using a force of 5 Newton's, how much power did you put out?

A. 3000 joules per second

B. 3.33 joules per second

C. 120 joules per second

D. 52 joules per second

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Answers (1)
  1. 20 December, 10:30
    0
    3.33 Joules Per Second

    Explanation:

    Before finding the Power, we need to calculate the Work Done. The Work Done can be calculated using the formula:

    WD = F * d

    where F is the Magnitude of Force in N

    d is the Parallel Distance moved by the object in m.

    Hence, by Applying this formula, we get:

    WD = (5) (20)

    = 100 J

    From here calculating Power is simple as it is the Rate of Work Done. Hence,

    Power = 100/30

    = 3.33 J/s

    Therefore, the power put out is 3.33 Joules per Second.
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Home » Physics » If it takes you 30 seconds to move a chair 20 meters across the floor, using a force of 5 Newton's, how much power did you put out? A. 3000 joules per second B. 3.33 joules per second C. 120 joules per second D. 52 joules per second
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