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(5.) A 6.4-kg mass is hung from a spring whose spring constant k = 150 N/m. The mass is released from rest with the spring unstretched. Ignoring air resistance, how fast will the mass be going after it has fallen a distance d = 0.52 m? (a) v2 = 1.96 m/s (b) v2 = 2.52 m/s (c) v2 = 3.77 m/s (d) v2 = 3.19 m/s (e) v2 = 5.81 m/s

(5.) A 6.4-kg mass is hung from a spring whose spring constant k = 150 N/m. The mass is released from rest with the spring unstretched. Ignoring air resistance, how fast will the mass be going after it has fallen a distance d = 0.52 m? (a) v2 = 1.96 m/s (b) v2 = 2.52 m/s (c) v2 = 3.77 m/s (d) v2 = 3.19 m/s (e) v2 = 5.81 m/s

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(5.) A 6.4-kg mass is hung from a spring whose spring constant k = 150 N / m . The mass is released from rest with the spring unstretched. Ignoring air resistance, how fast will the mass be going after it has fallen a distance d = 0.52 m ? (a) v 2 = 1.96 m / s (b) v 2 = 2.52 m / s (c) v 2 = 3.77 m / s (d) v 2 = 3.19 m / s (e) v 2 = 5.81 m / s

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