A block of mass 1.40 kg is attached to a spring and sits on a frictionless table which is a height h=4.0 m above the floor.The spring is compressed by d=0.11 m initially.If the spring constant is k = 600 N/m,what is the speed of the block when it leaves the spring? 
A) 1.2 m/s
B) 2.3 m/s
C) 3.4 m/s
D) 4.7 m/s
E) 5.1 m/s
Correct Answer:
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