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There are three particles ABC which are situated at vertex of equilateral triangle ABCof side d at time T = 20 each of the particle moves with constant speed v always has its velocity along a b be always has be always has MC always has its velocity along CA at what time they will meet with each other
There are three particles ABC which are situated at vertex of equilateral triangle ABCof side d at time T = 20 each of the particle moves with constant speed v always has its velocity along a b be always has be always has MC always has its velocity along CA at what time they will meet with each other

```
2 years ago

Arun
25768 Points
```							Dear Arvind  velocity of A is v along AB the velocity of B is along BC . its component along BA is vcos60 = v/2. thus the separation AB decreases at the rate v+v/2=3v/2sice this rate is constt. the time taken in reducing the separation AB from d to 0 is  t=d/(3v/2) =2d/3v
```
2 years 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