- #1
zade70
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Homework Statement
When the brick with mass 3 kg is hanged in a spring, it is lengthened 25 cm. If we lengthen the spring with 15 cm more and leave it free how may times does the brick take to come back to the equilibrium position
Homework Equations
In the solution it says t=T/4
The Attempt at a Solution
I understand d the other part, but why is t=T/4 (t-time, T-period)