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28 March, 19:19

A spring has a spring constant of 80 N/m. How much elastic potential energy

is stored in the spring when it is compressed by 0.1 m?

O A. AJ

O B. 0.4 J

O c. 0.8J

O D. 8J

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Answers (1)
  1. 28 March, 22:07
    0
    Answer:B

    Explanation:

    elastic constant (k) = 80N/m

    extension (e) = 0.1m

    Elastic potential energy = (k x e^2) / 2

    Elastic potential energy = (80 x (0.1) ^2) / 2

    Elastic potential energy = (80x0.1x0.1) / 2

    Elastic potential energy=0.8/2

    Elastic potential energy=0.4

    Elastic potential energy is 0.4 joules
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