2. An escalator was built with an angle of depression of 30°. It descends at a rate of 100 feet per
minute. If the vertical rise of the escalator is 60 feet, how many seconds does it take for a
person riding the escalator to travel its full length? (sin 30° = 0.5; cos 30°= 0.866;
tan 30°=0.577)
A. 1.3 min
B. 1.2 min
C. 1.03 min
D. 0.7 min