Problema Solution
The speed of a moving sidewalk at an airport is 2ft/sec. A person can walk 93ft forward on the moving sidewalk in the same time it takes to walk 12ft on a non moving sidewalk in the oppsite direction. At what rate would a person walk on a nonmoving sidewalk?
Answer provided by our tutors
let
x = the speed of the person on a non-moving sidewalk
t = the time he walks in one direction
(x + 2)*t = 93
x*t = 12
by solving the system of equations we find
x = 0.2963 ft/sec
t = 50.5 sec
The rate of the person walking on non-moving sidewalk is 0.2963 ft/sec.