Question 2 - Problems - Chapter 2

Problem:

The world record for the 100-yard run is 9.0 s

Question:

What is the average speed in miles per hour?

Solution:

Distance $s = 100yards$

Time $t = 9.0s$

Average speed $v = \frac{s}{s}$ yard / s

There are 3600 seconds in 1 hour

There are 1760 yards in 1 mile

Distance = 100
Time = 9
Speed_ys = Distance/Time # in yards per second
Speed_yh = Speed_ys * 3600 # in yards per hour
Speed_mh = Speed_yh / 1760 # in miles per hour
# limit to 2 significant figures as time is given in 2 significants too
print(f'The speed of this world record is {Speed_mh:.0f} Miles per hour') 

The speed of this world record is 23 Miles per hour