A spring of spring constant 5×103N/m is stretched initially by 5cm fr – McqOptions

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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.

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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?