Answer
B. 5.9 ft/s
Work Step by Step
(Convert miles per hour to feet per second)
$\frac{26 mi}{1 hr}\times\frac{1 hr}{3600 s}\times\frac{5280 ft}{1 mi}=\frac{137,280 ft}{3600 s}$
(Find common denominator for feet per second)
$\frac{44ft}{1s}\times\frac{3600}{3600}=\frac{158,400}{3600}$
(Find the difference in speeds)
$\frac{158,400}{3600}-\frac{137,280}{3600}=\frac{21,120}{3600}\approx5.9 ft/s$
