Relative motion in rain: A man runs eastward while rain falls vertically — from which apparent direction does the rain seem to come? Assume still air aloft; runner’s speed is horizontal toward the east. Choose the correct option.

Q: Relative motion in rain: A man runs eastward while rain falls vertically — from which apparent direction does the rain seem to come? Assume still air aloft; runner’s speed is horizontal toward the east. Choose the correct option.

Relative velocity Apparent rain velocity = vrain − vrunner. With vrain vertical and vrunner eastward, the apparent direction is tilted, coming from the east. Final Answer From the east (slanted toward his face)

Difficulty: Easy

From the west
From the east (slanted toward his face)
From the north
From the south

Correct Answer: From the east (slanted toward his face)

Explanation:

Relative velocity
Apparent rain velocity = v_rain − v_runner. With v_rain vertical and v_runner eastward, the apparent direction is tilted, coming from the east.

Final Answer
From the east (slanted toward his face)

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