1. The problem statement, all variables and given/known data A 5.4g mass is released from rest at C which has a height of 1.2m above the base of the loop-the-loop and a radius of .36m Finde the normal force pressing on the track at A, where A is at the same level as the center of the loop. Answer in units of N So the picture is of a ball (at point C) at the top of a 1.2m slope that goes down into the beginning of the loop the loop where point A is at 0o from the center of the radius and point B is at the top of the loop. 2. Relevant equations 1/2mvf2+PEi=1/2mvf2+PEf Sum of all of the forces is = to mac or mass times the centripetal acceleration. 3. The attempt at a solution I need to make and equation that works for this problem but I don't know where to start.