Cool Pulley

The figure above shows a block B of negligible mass connected to a particle of mass 1 kg1 \text{ kg} with a non-stretchable string. The hanging particle, at rest, is given a velocity 8gH m/s\sqrt{8gH} \text{ m/s} horizontally. The initial acceleration of block B is K m/s2K \text{ m/s}^2. Find the value of KK.

Details:

  • Acceleration due to gravity g=10 m/s2g=10 \text{ m/s}^2 .
  • H=2 mH=2 \text{ m}.
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