As you hurry to catch your flight at the local airport, you encounter a moving walkway that is 80 m long and has a speed of 2.0 m/s relative to the ground. If it takes you 70 s to cover 80 m when walking on the ground, how long will it take you to cover the same distance on the walkway? Assume that you walk with the same speed on the walkway as you do on the ground.
2 answers
helppppp :(
the walkway speed is added to your walking speed
walking ... 80 m / 70 s = 8/7 m/s
with walkway ... 2.0 m/s + 8/7 m/s = 22/7 m/s
time to traverse walkway = 80 m / 22/7 m/s
between 25 and 26 seconds
walking ... 80 m / 70 s = 8/7 m/s
with walkway ... 2.0 m/s + 8/7 m/s = 22/7 m/s
time to traverse walkway = 80 m / 22/7 m/s
between 25 and 26 seconds
0 answers