My class did a lab where we roll a cylinder down a ramp (the end of the ramp was at the edge of the table). We placed a photogate timer right at the position where the cylinder fell off the ramp, and a photogate timer right at the position where the cylinder hit the floor. The information gathered was mass of cylinder, diameter of cylinder, initial and final velocity, the angle above the horizontal that the cylinder fell, the height of the table, and the distance on the floor away from the table that the cylinder hit. I'm supposed to find the average force of air resistance. We have not learned that the force of air drag is proportional to velocity and we are not using calculus. I'm thinking about finding the acceleration in x and y but I need to figure out either the time, or the x and y components of the final velocity. Then i can graph the position of the cylinder with respect to time and figure out the distance of the path that the cylinder fell. Then i could find force. So basically my question is: how do i find time or the x/y components of the final velocity? thanks all.