Question

4
A man is walking on a horizontal road at velocity
of 5 km/h and the rain appears to be falling
vertically at 5 km/h to him. The magnitude of
velocity of rain with respect to the ground is?​

Answer 1

Answer:

Explanation:

VRain,Person​=VRain​−VPerson​=−5j^​ (vertically down)

Thus, VRain​−(−5i^)=−5j^​ (west means −5i^)

or, VRain​=−5i^−5j^​

Thus, magnitude = 52

​ km/hr, direction is in 3rd quadrant, i.e. clockwise to vertical at an angle of tan−1(55​)=45o to vertical

Answered By

rishika

Answer 2

Answer

5√2m/s

Explanation:

remember that:

• Vrm=velocity of rain as seen by man
• Vr=velocity of rain
• Vm=velocity of man

refer the attached image !!

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