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17 May, 12:04

A spring has a constant of 20 n/m. how far will it extend when the following forces are applied. (assume the spring does not pass its elastic limit)

a) 10 N

b) 50 N

c) 0.2 KN

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Answers (1)
  1. 17 May, 14:17
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    A.) 0.5 m

    B.) 2.5 m

    C.) 10 m

    Explanation:

    Given that the

    Spring constant K = 20 N/m

    From hooks law

    F = Ke

    Where

    F = force applied

    K = spring constant

    e = extension

    A.) When F = 10 N

    Substitute F and K into the formula

    10 = 20e

    e = 10/20 = 0.5 m

    B.) When F = 50 N

    50 = 20e

    e = 50/20 = 2.5 m

    C.) When F = 0.2 KN

    0.2 * 1000 = 20e

    200 = 20e

    e = 200/20 = 10m
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