Driving a jet- powered car, Royal Air Force pilot Andy Green broke the sound barrier on land for the first time and achieved a record land speed of more than in Black Rock Desert, Nevada, on October 15, 1997 (Fig. 1.15).

(a) What is this speed expressed in m/s?
(b) How long would it take the jet- powered car to travel the length of a 300- ft football field at this speed?