.SMOJ ppe Part 2 Now a 2nd period of AP students is going to experimentally determine the same coefficient of friction by applying Newton's 2"d law to the problem and compare their results to the 1st group of AP students. They determine they need a meter stick, and a motion detector to determine the acceleration of the cart down the ramp, a. The same cart with the same friction pad is used and placed at the top of the track. It is released from rest after starting the motion detector which examines its position versus time as it accelerates down the track. The track is at an angle of incline B above the horizontal, the c. rt has a mass m. Objective: Determine coefficient of kinetic friction between the friction pad and track by applying Newton's 2 nd law . Sketch (create and label a sketch) Math Model Derive an equation for the coefficient of kinetic friction, Uk, in terms of B, m, a, and any constants (g). Must start with physics principles (Newton's 2nd law). You absolutely need a FBD of the forces acting on the cart while traveling down the track. Assume down the track is the positive direction. Your answer should be in the form of Hk = your