A particle of mass 0.3 kg is subjected to a force
F = kx with k = 15 N/m and
x being its distance from the origin. What will be its initial acceleration if it is released from
a point 20 cm away from the origin ?
(A) 5 m/s2
(B) 10 m/s2
(C) 3 m/s2
(D) 15 m/s2