The current indoor world record time in the 200-m race is 19.92 s, held by Frank Fredericks of Namibia (1996), while the indoor record time in the one-mile race is 228.5 s, held by Hicham El Guerrouj of Morroco (1997).
(a) Find the mean speed in meters per second corresponding to the record time for the 200-m event (m/s)?
(b) Find the mean speed in meters per second corresponding to the record time for the one-mile event (m/s)?