(8a) Anita is standing on her skates on a frozen pond when her brother, Ahmed, moving with a uniform speed of 15.3 m/s, skates by with the hockey puck. After 1.908 s, Anita makes up her mind to chase Ahmed. If she accelerates uniformly at 1 m/s², from the time Anita starts skating, how long does it take her to catch Ahmed? (Assume Ahmed remains in motion at constant speed.) (8b) How far has Anita travelled when she catches Ahmed?