How the velocity of rain relative to the driver in car increases?

[Krishna Behera]

How does the velocity of the rain with respect to the car get added up? Velocity of rain with respect to man is given by the (velocity of rain wrt ground - the velocity of car wrt ground). Here it's not being added up!

 

[Orodruin]

How is what you just described not an addition of velocities?

 

[A.T.]

Velocity of rain with respect to man is given by the (velocity of rain wrt ground - the velocity of car wrt ground). Here it's not being added up!

You mean because there is a minus sign? Then write it like this:

velocity of rain wrt car = velocity of rain wrt ground + the velocity of ground wrt car

 

[CWatters]

No. You need to do vector addition not regular addition.

 

[gsal]

No. You need to do vector addition not regular addition.

I think the "wrt" part is basically saying to only use the horizontal components.

 

[Orodruin]

I think the "wrt" part is basically saying to only use the horizontal components.

wrt is "with respect to" and has nothing to do with projecting out the horizontal components.

 

[CWatters]

I think we need the OP to come back with more info on the problem.

 

[A.T.]

You need to do vector addition not regular addition.

That is of course true and how my post #3 should be interpreted.