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to a person moving eastward with a velocity of 4.8 km per hour rain appears to fall vertically downward with a speed of 6.4 km per hour find the speed and direction of the rain |
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Answer» Answer: speed and direction of rain is 8 km/hr SOUTHWEST Explanation: Velocity of PERSON, Vp = 4.8 km/hr east = 4.8 in positive x axis Velocity of rain to be appeared to the person, Vrp = 6.4 km/hr ( in negative y axis) Vrp = VR - Vp Vr = √( Vrp^2 + Vp^2) = √64 = 8 km/hr southwest
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