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`        Option 3.  The speed of lower end gets smaller and smaller and vanishes when upper end touches groundOption 4.   The speed of lower end remain constant till upper end touches ground.Plz answerIMAGE IS ATTACHEDAns is 3 `
11 months ago

Utsav Basu
70 Points
```							     y2+x2=l2or, 2y dy/dt+2x dx/dt = 0or, x dx/dt = -y(-vy) = yvy     [Let dy/dt = -vy]or, vx = vy(y/x) Thus, since with time y decreases and x increases you will have the said result. PS. I am also in Aakash. What’s your name?
```
11 months ago
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### Course Features

• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions