Question

Rain is falling vertically down with a speed of 10 m/s, a women rides a bike with a speed of root three times that of the speed of the rain in east to west direction, the angle with which she has to turn the umbrella from vertical in order to protect herself from the rain is​

Answer 1

Explanation:

The described situation is shown in the given figure.

Here, v

c

= Velocity of the cyclist

v

r

= Velocity of falling rain

In order to protect herself from the rain, the woman must hold her umbrella in the direction of the relative velocity (v) of the rain with respect to the woman.

tanθ=v

c

/v

r

=10/30

θ=18

o

Hence, the woman must hold the umbrella toward the south, at an angle of nearly 18 with the vertical.

do it like that.... thanks ..