Multiple Choice
A 2.5-kg object is attached to a spring of force constant k = 4.5 kN/m.The spring is stretched 10 cm from equilibrium and released.What is the kinetic energy of the mass-spring system when the mass is 5.0 cm from its equilibrium position?
A) 5.6 J
B) 11 J
C) 17 J
D) 14 J
E) 42 J
Correct Answer:

Verified
Correct Answer:
Verified
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