Question

rain is falling vertically downwards with a speed of 5 m/s .if unit vector along upward is defined as j^,represent velocity of rain in vector form.​

Answer 1

Hii Vani,

◆ Answer -

Velocity of rain = -5j m/s

◆ Explanation -

Magnitude of velocity is equal to speed of rain. i.e. 5 m/s.

Direction of rain velocity is downwards, which is in opposite direction of unit vector. i.e. -j

From this we can write,

Velocity of rain = magnitude × direction

Velocity of rain = 5 m/s × -j

Velocity of rain = -5j m/s

Therefore, we can represent velocity of rain as -5j.

Best luck...

Answer 2

-5j^ would be the correct ans as rain is falling in downwards direction, which os in opposite direction of j^