A boy is moving with velocity 3 km/hr along east and the rain is
falling vertically with 4 km/hr. Calculate the velocity of rain
relative to boy.
Answers
Answered by
1
Answer:
1km/hr
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Answered by
3
Answer:
5 km/hr
Explanation:
The motion of the boy and the rain are perpendicular to east other (boy moving on the x-axis and rain on the y-axis). We need the hypotenuse of a right triangle with sides of 3 km/hr and 4 km/hr.
c² = a² + b² = (3 km/hr)² + (4 km/hr)² = 9 km²/hr² + 16 km²/hr² = 25 km²/hr².
c = √(25 km²/hr²) = 5 km/hr.
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