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It is required to select a flat-belt drive to connect two transmission shafts rotating at 800 and 400 rpm respectively. The center-to-center distance between the shafts is approximately 3 m and the belt drive is open type. The power transmitted by the belt is 30kW and the load correction factor is 1.3. The belt should operate at a velocity between 17.8 to 22.9 m/s. The power transmitting capacity of the belt per mm width per ply at a 180-degree arc of contact and at a belt velocity of 5.08 m/s is 0.0147 kW. Select preferred pulley diameters and specify the belt.