A man is walking on a road with a velocity 3 km/hr. Suddenly rain starts falling. The velocity of rain is 10 km/hr in vertically downward direction. The relative velocity of the rain is -
√13km/hr
√7km/hr
√109 km/hr
13 km/hr
Given:
V = 3 km/hr or → Vr = −10ˆj
km/hr V = -10 km/hr or km/hr Velocity of rain with respect to man
→ Vrm = → Vr − → V m = −10ˆi − 3ˆj ∣ ∣ ∣ → Vrm ∣ ∣ ∣ = √102 + (3) 2 = √109 km/hr
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