A 250-Kg Object Is Attached to a Spring of Force Constant

Multiple Choice

A 2.50-kg object is attached to a spring of force constant k = 4.50 kN/m.The spring is stretched 10.0 cm from equilibrium and released.What is the maximum kinetic energy of this system?

A) 45.0 J
B) 22.5 J
C) 56.0 J
D) 2.25 $\times$ 10⁵ J
E) 4.50 J