When a 1.0kg mass hangs attached to a spring of length 50 cm, the spri – McqOptions

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1.	When a 1.0kg mass hangs attached to a spring of length 50 cm, the spring stretches by 2 cm. The mass is pulled down until the length of the spring becomes 60 cm. What is the amount of elastic energy stored in the spring in this condition, if g = 10 m/s2 [MP PET 2001]
A.	1.5 Joule
B.	2.0 Joule
C.	2.5 Joule
D.	3.0 Joule
Answer» D. 3.0 Joule

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