A rod of mass m and length l is lying on a horizontal table. Work done in making it stand…

Physics · JEE Main · NTA ExamsWork, Energy and Power

A rod of mass m and length l is lying on a horizontal table. Work done in making it stand on one end will be:
  1. mgl
  2. \(\frac{m g \ell}{2}\)
  3. \(\frac{m g \ell}{4}\)
  4. 2 mgl

Answer

(B) m g 2

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