Hi, I appreciate any help. Thanks in advance! 1. The problem statement, all variables and given/known data The image shows the top view of the set-up. Basically, it is a cylinder (resting on a horizontal plane) with two rods on either side attached in line with the centre of mass of the cylinder. Two pieces of string are then taped onto the rods and then tied to another string which is pulled horizontally with a constant force. The string just coils around the rods as the cylinder rolls. Is it possible to determine the velocity of the cylinder after given amount of time? (assuming the force pulling the string is known) Also is it possible to determine what magnitude of force would cause the cylinder to slip, given the coefficient of static friction? 2. Relevant equations 3. The attempt at a solution I thought that the horizontal components of the tension in the two strings would create a torque on the two rods which is transferred to the cylinder as it rotates with the rods but, then I ran into more problems like what is the tension in those two strings? and what is the direction of the friction on the cylinder?