Question

13. Rain is falling vertically with a speed of 4 m/s. After
some time, wind starts blowing with a speed of
3 m/s in the north to south direction. In order to
protect himself from rain, a man standing on the
ground should hold his umbrella at an angle e given
by
(1) 0 =
= tan-13/4 with the vertical towards south
(2) 0 = tan-13/4 with the vertical towards north
(3) 0 = cot13/4 with the vertical towards south
(4) 0 = cot 13/4 with the vertical towards north​

Answer 1

Answer:

ur typing has a little mistake...its ∅=tan-¹ (¾) with the vertical towards north. (2) ✅

ur option looks like →tan (13/4) ❌