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rohan bhatia Grade: 11
        

sir pls pls solve this quotion


7 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points
										

Dear Rohan


One thing should be noted here that length of the rope is constant.


let the length between the wedge and lower pully is x2


and    length between the block and upper pully is x1


 


           +dx1/dt =v1


and      -dx2/dt =v2


 


Now length of the rope is constant


   so   x2+ (x22+l2)1/2 +x1 =coonstant    where l is a vertical distance between two pully which is constant


now differentiate and put +dx1/dt =v


and      -dx2/dt =v2


and  sinθ =x2/(x22+l2)1/2


and rearrange you will get


v1=v2(1+sinθ)






Please feel free to post as many doubts on our discussion forum as you can. If you find any question Difficult to understand - post it here and we will get you the answer and detailed solution very quickly.
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 All the best rohan.
 
Regards,
Askiitians Experts
Badiuddin


 

7 years ago
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