Question 833805
In the future, for all problems of this nature, remember that 88 feet per second = 60 miles per hour (this is because 1 mile = 5,280 feet, and 1 hour = 3,600 seconds).

The truck was traveling at a speed of 50 feet per second (that is 550/11).

To convert this to miles per hour we need to calculate (50/88) times 60 = 34.09