1. The problem statement, all variables and given/known data what is the down force on the connecting rod? i tinnk ive work most of it but i'm a bit unsure of what to do next? A train of mass 138800kg have 24 wheels (12 axles) V = 37.1 m/s U =0 s= 694 m F= 12.1KN R = 0.4 m r = 0.21 m 2. Relevant equations V2 = U2 + 2 x a x s Average braking force for the whole train = m x a 3. The attempt at a solution a = -0.99m/s Average braking force for the whole train 138800 x -0.99 = 137KN braking Force for each wheel 137/24 = 5.7KN so this is were i need the help please Were is this braking force atchley acting on the wheel ( at the rim the edge of were?) when the force F is clamping on the wheel the force from the wheel will transfer to the rod?