I'm on the right track, but I'm stuck here.... The radius of a Ferris wheel is 5 m and it makes one rev in 10 sec a Find the difference b/w the apparent weight of a passenger at the highest and lowest points, expressed as a fraction of his weight, W b What would the time for one rev be if teh apparent weight at the top were zero? c What would be the apparent weight at the low point?? I have at the top that mv^2/r = mg - Fn and at the bottom mv^2/r = Fn -mg I really dont undestand what a is asking...(Fnbottom - Fntop)/ W ??