Figure shows the variation of force with the distance from the oscillating Centre of an object

Figure shows the variation of force with the distance from the oscillating Centre of an object of 0.4 kg which is performing a simple harmonic motion the force acting towards center of oscillation at the amplitude position and the frequency of the oscillation are given respectively by

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0:00 Question
0:33 Equations
1:19 Solution
3:43 Answer