OK, struggling a little here to grasp this one. Any help guiding me in the correct direction would be welcome. 150mm diameter pulley is directly driven at 250 rev per min. A V-belt is used to transmit power from this electrically driven pulley to another, which is 400mm in diameter. The centre point distances between the two pulley's is 600mm. The included angle of the pulley groove is 40 degrees. The coefficient of friction is 0.4 The ultimate strength of the belt is 8kN What I need to find is the actual power transmitted to the second pulley.