Question

A man sitting in a bus travelling in a direction from west to east with a speed of 40 km/h observes that the rain-drops are falling vertically down. To the another man standing on ground the rain will appear

• A. To fall vertically down
• B. To fall at an angle going from west to east
• C. To fall at an angle going from east to west
• D. The information given is insufficient to decide the direction of rain.

Answer 1

Answer: (B)

To fall at an angle going from west to east

Answer 2

A man is sitting in a bus and travelling from west to east, and the rain drops are appears falling vertically down

$v_{m} =$ velocity of man

$v_{r} =$ Actual velocity of rain which is falling at an angle $\theta$ with vertical

$v_{rm} =$ velocity of rain w.r.t. to moving man

If the another man observe the rain then he will find that actually rain falling with velocity $v_{r}$ at an angle going from west to east.