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An open belt drive is required to transmit 10 kW of power from a motor running at 600 rpm. Diameter of driving pulley is 250 mm.The speed of driven pulley is 220 rpm.

The belt is 12 mm thick and has mass density of 0.001 gm/mm$^{3}$.Safety stress in the belt is not to exceed 2.5 N/mm$^{2}$. The two shaft are 1.25 m apart. The coefficient of friction is 0.25. Determine width of belt.

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