A spring of spring constant 5×103N/m is stretched initially by 5cm from the unstretched position. Then the work done to stretch is further by another 5cm is?

A spring of spring constant 5×103N/m is stretched initially by 5cm f

1.	A spring of spring constant 5×103N/m is stretched initially by 5cm from the unstretched position. Then the work done to stretch is further by another 5cm is?
A.	6.25Nm
B.	12.50Nm
C.	18.75Nm
D.	25Nm
Answer» D. 25Nm

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A spring of spring constant 5×103N/m is stretched initially by 5cm from the unstretched position. Then the work done to stretch is further by another 5cm is?

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