A bird is flying around the world at a rate of 26.4 ft/sec. How many days will it take to complete its journey? (circumference of earth = 25,000 miles)
distance=rate*time
time= distance/rate
I memorized a long time ago this conversion factor: 88ft/sec = 60 mi/hr
so...26.4ft/sec*60mph/88fps=18mph
time= 25E3 miles/(18mph)= 25E3/18 hr
Want that in days? Post this in the google search engine:
25000/18 hr in days