Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • Rain is falling vertically downward with a velocity of 3kmph. A boy walks in the rain with a velocity of 4 kmph. The rain drops appear to be falling on the boy with a velocity (in kmph) of </p

Rain is falling vertically downward with a velocity of 3kmph. A boy walks in the rain with a velocity of 4 kmph. The rain drops appear to be falling on the boy with a velocity (in kmph) of 

Option: 1

5


Option: 2

3


Option: 3

4


Option: 4

1


Answers (1)

best_answer

Solution

Given-

Assuming vertically downward direction to be along y direction and horizontal direction to be x direction.

velocity of rain = 3\hat{j}

velocity of boy = 4\hat{i}

\vec{V}_{RB}=\vec{V}_{R}- \vec{V}_{B}

=3\hat{j}-4\hat{i}

|\vec{V}_{RB}|=\sqrt{(3)^{2}+(4)^{2}}= 5 kmph

Posted by

Kuldeep Maurya

View full answer

Similar Questions

Latest Question