Compute all parts of given question:
Question: A 60kg bicyclist rides his 7.8kg bicycle with a speed of 15m/s.
Part I: How much work must be done by the brakes to bring the bike and rider to a stop?
Part II: How far does the bicycle travel if it takes 3.5s to come to rest?
Part III: What is the magnitude of the braking force?
I need help to find how much work must be done by the brakes to bring the bike and rider to a stop.