Greetings! I am currently making a program which is about lighting columns. And I am currently at a halt because I need some basic physics done before I can complete it. I have a lighting column which is L = 8 m D = 0.087 m M = 69 kg I have a force, applied from the wind load, at F = 1235 N Now I need to find the torque applied on the whole column. I have used this formula earlier T = ½ ⋅L⋅M⋅g (where i've used F = mg) This have given me T = 4944 Nm. I just need a validation if these calculations are correct. Because my real problems starts now: I want to add an arm to the top of the lighting column with these data L = 3m M = 36 kgs D = 0.120m And I wonder what the combined torque applied to the column is now? The arm will be at a 90° angle outwards from the column like this → Γ Later on I want to add a lighting armature to the arm and do the same calculations (but that won't be a problem when I understand how the arm affects the column). English is not my first language, so bear with me if I am unclear, or not using the correct terms.