Problema Solution
an athletic boy runs 50 yards in 6.5 seconds. what is his speed in mph
Answer provided by our tutors
1 mi = 1760 yd
1 yd = 1/1760 mi
1 hour = 60*60 sec
1 sec = 1/3600 h
50 yd / 6.5 sec = 50(1/1760) mi / 6.5(1/3600) h = (50(1/1760))/(6.5(1/3600)) mph = 15.73 mph.