Respuesta :

Hasindu
20m/s
Speed=distance/time
Speed = 100/5 = 20

Answer = 20m/s
The answer is 45 mph. Here's how: 100met./5sec. is equal to 1200met./1min. 7200met./hour is equal to 1200 meters per minute. 1600 meters is equal to a mile. 7200 divided by 1600 is 45. There you have it.