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

May 10, 2022

by Ezee_Notes

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Physics Problems

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

(A) 6.25 𝑁-𝑚

(B) 12.50 𝑁-𝑚

(D) 25.00 𝑁-𝑚

Answer: Option (C)

Solution:

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