IIT JEE , AIEEE Forum - Physics , Mechanics - F AITS QUES :IS IT RIGHT OR M WRONG ???????????PLZZZZZHELP

pink_ele

did u see that car ques
where rain hit
it should be rear naa................
or m wrong car (forward
rain (down)
sum (south west )ie rear side
what u say

bitti_friend

hmm, well i marked both A and B coz i assumed thot the rain can strike either window based on direction of motion (ie travelin forward or reversing)

spideyunlimited

can u tell me the question please??

....

ashwin123

cmon yaar, it will always hit the front screen.

Aisa karo is that consider the relative motion of rain wrt car, u 'll see the direction of rain such that it always hits the front screen, no matter the direction in which it is moving,

bitti_friend

well this question has a loophole,

i`v assumed tht the front window is the window close to driver and not wat u've taken

ashwin123

i am out of here, this is a basic question yaar, 11th ki ncert dekh le mere bhai if u dont beleive me.

bitti_friend

Aisa karo is that consider the relative motion of rain wrt car, u 'll see the direction of rain such that it always hits the front screen, no matter the direction in which it is moving,

This is the question, now plz define wat u mean by the front screen

and then compare wat i`ve taken
i`v assumed tht the front window is the window close to driver

u havent yet comprehended my argument

tarinbansal

No. Yaar its an easy ques of vectors and relative velocity.
The ques is correct and the ans is also correct. The answer is FRONT WINDSCREEN.
Just do it by the concept of relative vel. U will get the ans.

pink_ele

i mean this

pink_ele

that friction one too

friction is always back den why they say forward in rolling net motion is forward not friction

ashwin123

hello , friction is not always back. It just opposes relative motion of the poc.

In this case poc has tendency to move backwards, so friction tends forwards.

saurabh_reincarnated

tum to is quest. ko khatarnak banate hi ja rahe ho

its simple yaar..

see vel. dir. of rain wrt car.......

as thr is no vert. motion of car rain seems to come down in cars frame

but as car is moving forward it will see that the rains r going backward...

so net direction is south west if car is going in east dir.....

thts it. so it will hit the front and not rear

pink_ele

here i tell u why m ryt

ok if m wrng

den why we hold d umbrella backwards while walking in rain ?

why not at front

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