Find the force with which the body will act on the spring with stiffness (K). If the spring is shortened by 5cm.

In this case, the elastic force acts, Fy = k * x, where x is the change in length
The spring was shortened by x = 5 cm = 0.05 m, stiffness K
Fy = 0.05K
Answer: Fy = 0.05K.



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