A 33.3 kg cyclist is riding a 10.7 kg bicycle at a velocity of 7.0 m/s. If the cyclist applies a brake that applies a force of 42.7 N, what is the time required for the cyclist to come to a stop?

Answer 1

force*:time=changemomentum
42.7*time=(33.3+10.7)(7.0)
solve for time

Answer 2

A cyclist travels 3 km in 10 minutes. At what average speed does he travel