Question

A moving sidewalk in an airport moves people between gates. It takes Jason's 5-year-old daughter Josie 28 sec to travel 112 ft walking with the sidewalk. It takes her 27 sec to walk 54 ft against the moving sidewalk in the opposite direction). Find the speed of the sidewalk and find Josie's speed walking on a non-moving ground. Part 1 out of 2 The sidewalk moves at ft/sec.

Answer 1

v ft/ see 3 sat ground is Speed is. Let, speed of sidewalk is and the speed of Josie on a nonna on-moning u ft/sec when..Josie. Walks with the sidewalk, the resultant (utv) ft/se and when she moving in opposite direction on the sidewalk, then the resultant speed is (U=V.). ft/sec (Here we don't know whether uske or not? If usv, then love will be so Otherwise U-V40 , 4. Sun But since Josie moves 54. ff against the side walk UV Now according to the question (U+V)x 28 112 4 And 54 or Utv -11-2 28 (U-V) * 27. January 2007 U-V 54 27 ..2... M T W T F S S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 2 solving or ③ we get U = 3 = 1. i. sidewalk moves at 1 ft/see