1. The problem statement, all variables and given/known data The total weight of the go-cart and driver is 1068N. The location of their combined center of mass is shown in attachment. The rear wheen exert a 106.7 N horizontal force together on the track. Neglect horizontal force on the front wheels. a) What is go carts acceleration? [SOLVED MYSELF] b) What are the normal forces exerted on the tires at A and B? 2. Relevant equations Moment around centre of mass. 3. The attempt at a solution NA+NB-W = 0 (where NA and NB is normal force acting on the tires) Moment around CM in clockwise direction NA*(0.4064)+F*(0.381)-NB*(1,1176) = 0 solving for NA and NB I get My answer; NA = 756,52 N NB = 485 N, which is wrong according to the book. I don't know what is wrong. Please help.