An object O is just about to strike a perfectly reflecting inclined plane of inclination 37 degree..its velocity is 5m/s .find velocity of its image !!

Question

anonymous · Answer

its velocity will be  v * cos(37) as in the mirror you will only be able to make out its horizontal component.

anonymous · Answer

No buddy the answer is 4.8 i + 1.4 j  Well I did it but do not know the genuineness of the answer you try again :)

anonymous · Answer

i actually need the diagram...
i think i am interpreting it in a wrong way...
please send a diagram

anonymous · Answer

i think the object is moving in horizontal direction.
and the plane is inclined at 37 degree with respect to the ground. is it so?? then ill solve it again

anonymous · Answer

|dw:1383141899013:dw|
is it like this??

anonymous · Answer

I have clicked the pic I hope you can get the idea as pic is not clean enough

anonymous · Answer

|dw:1383143866945:dw|
arrows indicate the direction of motion of image...
after this we need to resolve these two components in the x and y direction instead of direction along the plane. I think we will get the answer by this

anonymous · Answer

Well I did it by applying some geometry concept. First thing that the image will be formed perpendicular to the mirror right?

anonymous · Answer

So from previous comment we see that we simply get the result that the total velocity will be 5 m/s but only the direction of image is changed. SO we need to find the angle with respect to ground. now simply resolve this in x and y which is 5(cos(16) i + sin(16) j)
|dw:1383144292844:dw|

anonymous · Answer

That mean we will take perpendicular distance from object for finding its image.