A particle of mass 0.3 kg is subjected to a - kx with k = 15 N/m. What will be its initial acceleration if it is released from a point force F = - %3D %3D 20 cm away from the origin ? (а) 3 m/s? (b) 5 m/s? (c) 10 m/s? (d) 15 m/s?
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