Two weights W1 and W2 are suspended from the ends to a light string passing over a smooth…

Physics · JEE Main · NTA Exams — Laws of Motion

Two weights W1 and W2 are suspended from the ends to a light string passing over a smooth fixed pulley. If the pulley is pulled up at an acceleration g. The tension in the string will be:
  1. \(\frac{4 W_{1} W_{2}}{W_{1}+W_{2}}\)
  2. \(\frac{2 W_{1} W_{2}}{W_{1}+W_{2}}\)
  3. \(\frac{W_{1}-W_{2}}{W_{1}+W_{2}}\)
  4. \(\frac{W_{1} W_{2}}{2\left(W_{1}+W_{2}\right)}\)

Answer

(A) 4 W_ 1 W_ 2 W_ 1 +W_ 2

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