Question

A man is walking to the right on a horizontal road with a speed vm if rain starts falling vertically downwards with a speed vr shows that the man needs to hold his umbrella inclined at an angle theta to the vertical such that theta =tan-1(vm/vr)

Answer 1

Answer:

idk to beacuse it running jumping

Answer 2

• Man is walking horizontal road with a speed of vm and rain is falling vertically downward with a speed of vr

so relative velocity of rain with respect to man is V r/m

V r/m = Vr - Vm

Vr = V r/m + Vm

Now application of vector addition

$&#10146 \: \tan \theta = \frac{vm}{vr} \: \: \: \: \: \\ \\ &#10146 \: \: \theta = { \tan}^{ - 1} ( \frac{vm}{vr}$