Two springs of negligible mass have the same natural lengt (50cm) and the same spring constant. In figure 1, the two springs are joined together and then are suspendly vertically with lower end also fixed in place. In figure 2, a small object A (mass 500 g)is attached at the point where the springs are joined, object A descends 20 cm and come to rest.
A is pulled downward and released gently. How much time elapses from release until A reaches its maximum height?
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