# Cool Pulley

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

Details:

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