Question

Rain is falling vertically with a speed of 30m/s.
A woman ride a bicycle with a speed of 10m/s in the north to the south direction. what is the direction in which she should hold her umbrella?​

Answer 1

Answer:

jj

Explanation:

Answer 2

Answer:

Explanation:

vc​=Velocity of the cyclist

vr​=Velocity of falling rain

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

v=vr​+(−vc​)

v=30+(−10)=20 m/s

tanθ=vr​vc​​=3010​

θ=tan−1(31​)

θ≈18°

Hence the women must hold the umbrella towards the south, at angle of nearly 18° with the vertica