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A particle of mass 0.3 kg is subjected to a force F = – kx with k = 15N/m.

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A particle of mass 0.3 kg is subjected to a force F = – kx with k = 15N/m. What will be its initial acceleration if it is released from a point 20cm away from the origin?

(a) 5m/s2 

(b) 10m/s2 

(c) 3m/s2 

(d) 15m/s2

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