Natural length of a spring is 60 𝑐𝑚, and its spring constant is 4000 𝑁/𝑚. A mass of 20 𝑘𝑔 is hung from it. The extension produced in the spring is, (Take 𝑔 = 9.8 𝑚/𝑠 2 )

May 10, 2022

by Ezee_Notes

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Physics Problems

Question: Natural length of a spring is 60 𝑐𝑚, and its spring constant is 4000 𝑁/𝑚. A mass of 20 𝑘𝑔 is hung from it. The extension produced in the spring is, (Take 𝑔 = 9.8 𝑚/𝑠 2 )

(A) 4.9 𝑐𝑚

(B) 0.49 𝑐𝑚

(D) 0.94 𝑐𝑚

Answer: Option (A)

Solution:

Natural length of a spring is 60 𝑐𝑚, and its spring constant is 4000 𝑁/𝑚. A mass of 20 𝑘𝑔 is hung from it. The extension produced in the spring is, (Take 𝑔 = 9.8 𝑚/𝑠 2 )