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Q4) The tension in a flat belt pulley system is 100 N when stationary. The wheel is 225 mm diameter and rotates at a constant speed of 1800 rpm whilst in operation with a 225^o angle of lap. The power output is 1.8 kW.

Using the relationship:

F₁/F₂=e^μθ

Where:

F₁ - force in the tight side of the belt.

F₂ - force in the slack side of the belt.

µ - the coefficient of friction.

Ѳ- the angle of lap in radians

Calculate the minimum coefficient of friction when no slipping occurs.