A bicyclist is finishing his repair of a flat tire when a friend rides by at 3.5m/s. Two seconds later, the bicylist hops on his bike and accerlerates at 2.4m/s(squared) until he catches his friend. (a) how much time does it takes until he catches his friend? (b) how far has he traveled in this time? (c) What is his speed when he catches up?