A 2.0 kg block is attached to a string that passes over a pulley and is attached to an ideal spring of spring constant k=100N//m, as shown. The pulley and string have negligible mass, and there is negligible friction in the Which of the following is approximately equal to the amplitude of the resulting motion? pulley. The block is held in place with the spring at its original unstretched length and then released from rest. 0.02 m 0.10 m 0.20 m 0.40 m