Three identical ideal springs, each of force constant k are joined to three identical balls (each of mass m) as shown in the figure. O is centroid of the triangle. Initially, each of the springs is in its natural length. Now all the three balls are simultaneously given small displacements of equal magnitude along the directions shown in the figure. The oscillation frequency of balls is . The value of is ____________.
In the figure, 0 = 30o.
When displacement is each ball x, the extension in each spring is
Each spring is connected to two balls.
So, net extension of each spring
Force along the direction of displacement on each ball is
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An ideal spring with spring-constant K is hung from the ceiling and a block of mass M is attached to its lower end. The mass is released with the spring initially unstretched. Then the maximum extension in the spring is
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