A vertical spring of force constant 100 N/m is attached with a hanging mass of 10 kg. Now…

Physics · JEE Advanced · NTA ExamsWork, Energy and Power

A vertical spring of force constant 100 N/m is attached with a hanging mass of 10 kg. Now an external force is applied on the mass so that the spring is stretched by additional 2 m. The work done by the force F is
 (g = 10 m/s2)
Shape Description automatically generated with low confidence
  1. 200 J
  2. 400 J
  3. 450 J
  4. 600 J

Answer

(A) 200 J

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