Make my day, please? :) You and a bunch of your friends are trying to figure out what the force exerced on your bike's tires are by your brakes. Here are the things that you have to help you figure out this problem: -The road you're riding your bike down is completely horizontal -You know your own, and your bike's mass (the mass is what you decide) -You know your initial speed (None was given) -The final speed before you slam on your breaks is at the max before the bike would slide (meaning you are not permitted to slide at all) -You are given a tape measure. This is all the info I have, and trying to figure out this problem is being difficult. :/ Maybe I'm over thinking things? I feel dumb. >.> Edit: I have no calculations already done because I do not know where to start.