I am trying to calculate the force that compressed air has on a cylinder. These cylinders are pushed in a production line for transportation using air. I would like to calculate the force such air puts on the cylinder. I have the velocity of the air, the área of the cylinder. Will using the equation of quantity of motion (F=rho*Q*deltaV) work? I have not seem to find a difference in the speed of air in any part of the trajectory. Please, help, and thank you for your time.