A person walks at 4 km/h on a moving escalator that moves at 2 km/h. What is the speed of the person relative to a stationary observer?

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Q: A person walks at 4 km/h on a moving escalator that moves at 2 km/h. What is the speed of the person relative to a stationary observer?

Solution: Speed of person relative to observer = Speed of person + Speed of escalator = 4 km/h + 2 km/h = 6 km/h.

Steps: 5

Step 1: Identify the speed of the person walking on the escalator, which is 4 km/h.
Step 2: Identify the speed of the escalator, which is 2 km/h.
Step 3: To find the total speed of the person relative to a stationary observer, add the speed of the person and the speed of the escalator together.
Step 4: Perform the addition: 4 km/h (person) + 2 km/h (escalator) = 6 km/h.
Step 5: The final result is that the speed of the person relative to a stationary observer is 6 km/h.