A person moving horizontally with velocity barV_(m).Rain falls vertically with velocity barV_(R). To save himself from the rain, he should hold an umbrella with vertical at an angle of

A person moving horizontally with velocity barV_(m).Rain falls vertica

1.	A person moving horizontally with velocity barV_(m).Rain falls vertically with velocity barV_(R). To save himself from the rain, he should hold an umbrella with vertical at an angle of
Answer» (a) `tan^(-1)((V_(R))/(V_(m)))` (B) `tan^(-1)((V_(m))/(V_(R)))` (C) `tantheta=V_(m)+V_(R)` (d) `tan^(-1)(V_(R)+V_(m)//V_(R)-V_(m))` ANSWER :A