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A man is standing on ground with an umbr...

A man is standing on ground with an umbrella hat as shown. Suddenly rainfall starts at speed `V_(R ) = 20 m//s` at an angle `30^(@)` with vertical. The speed and direction in which man should start runing so as to same himself from rain

A

not possible

B

`10 m//s` towards left

C

`10 m//s` towards right

D

`5 m//s` towards right

Text Solution

Verified by Experts

The correct Answer is:
B

`vec(v)_(RM) = vec(v)_(R ) - vec(v)_(M)`
`v_(M) = v_(R ) sin 30^(@) = 20 xx (1)/(2) = 10 m//s` left
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