Physics, asked by Alen777, 4 months ago

Rain is falling vertically with a speed of 1m/s . A woman rides a bicycle with a speed of 1.732 m/s in east to west direction. What is the direction in which she should hold her umbrella ?

Answers

Answered by sg53202
1

Answer:

In Fig. vr represents the velocity of rain and vb, the velocity of the bicycle, the woman is riding. Both these velocities are with respect to the ground.Since the woman is riding a bicycle, the velocity of rain as experienced by here is the velocity of rain relative to the velocity of the bicycle she is riding. That is vrb=vr−vb This relative velocity vector as shown in Fig. makes an angle θ with the vertical. It is given by tanθ=vbvr=3–√1⇒θ=60∘

Therefore, the woman should hold her umbrella at an angle of about 60∘ with the vertical towards the west

Explanation:

Answered by llMrDevilll
6

ANSWER

In Fig. Vᵣ represents the velocity of rain and Vb, the velocity of the bicycle, the woman is riding. Both these velocities are with respect to the ground.Since the woman is riding a bicycle, the velocity of rain as experienced by

[ See the figure ]

here is the velocity of rain relative to the velocity of the bicycle she is riding. That is rb Vᵣb = Vᵣ - Vb This relative velocity vector as shown in Fig. makes an angle θ with the vertical.It is given by

  :\longrightarrow  \sf\tan \theta =  \dfrac{v _b }{v _r}   =  \dfrac{ \sqrt{3} }{1}

  :\longrightarrow  \sf\theta =  60 \degree

Therefore,the woman should hold her umbrella at an angle of about 60° with the vertical towards the west

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Alen777: great!!
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