A spring has an unstretched length of 12.0 cm. Its stiffness k is 8 N/cm. What load is needed to stretch the spring to a length

Question

A spring has an unstretched length of
12.0 cm. Its stiffness k is 8 N/cm. What load is
needed to stretch the spring to a length of 15.0 cm?

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RuslanHeatt 4 months 2021-09-03T22:53:27+00:00 1 Answers 41 views 0

Answers ( )

    0
    2021-09-03T22:55:07+00:00

    Answer:

    24 N

    Explanation:

    Given,

    Unstretched length or original length , x1 = 12cm

    Stiffness constant, k = 8 N/cm

    Load required to take spring to a length , x2 of 15cm

    Recall the relation :

    F = Ke

    Where, e = extension

    e = x2 – x1

    e = (15 – 12) = 3

    F = ke

    F = 8 N/cm * 3cm

    F = 24 N/cm*cm

    F = 24 N

    Hence, required load = 24 N

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