1. The problem statement, all variables and given/known data To calculate the resultant pedal force from the variables given: Crank (degrees) measured clockwise from vertical, spindle (degrees) measured anti-clockwise from horizontal, tangent force (N) applied to the pedal surface, normal force (N) applied to the pedal surface and torque (Nm). For example a given reading is Crank: 10° Spindle: -18.21° Tangent force: 55.96N Normal force: -126.7N Torque: 6.4Nm Any help that can be provided is greatly appreciated. 2. Relevant equations 3. The attempt at a solution I have been attempting to use equations with the tangent and normal forces acting as x and y. Then using the spindle angle to try and calculate the resultant force with little success.