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 )

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 )

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 )