When the force is applied on the spring, the change in length must be 20 cm. The first option is correct.
What is gravitational potential energy?
If an object is lifted, work is done against gravitational force. The object gains energy.
Given is a force of 5.00 N is applied to a spring whose elastic constant is 0.250 N/cm.
Using Hooke's law, expressed as
Force, F = k (x₂-x₁) = k x
Put the values, we get Its change in length is
5 = 0.250x
x = 20 cm
Thus, the change in length must be 20 cm.
Learn more about gravitational potential energy.
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