A stationary man observes that the rain is
falling vertically with a speed of 5 km/h.
When he starts running with a velocity of 12
kmh on a plane road, he observes that the rain
is falling at a speed of
5 km/h
7 km/h
12 km/h
13 km/h
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Answer:
The answer is c. 12 km/h
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