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A body of mass 500g is tied to a string of length 1m is now revolving in a vertical circle with a constant speed. Find the minimum speed at which there will not be any slack in the string (g=10m/s²)
A body of mass 500g is tied to a string of length 1m is now revolving in a vertical circle with a constant speed. Find the minimum speed at which there will not be any slack in the string (g=10m/s²)

```
3 years ago

## Answers : (1)

Tejus
35 Points
```							for perfect no slack there is no speed as at vertically upwards all the forces are downwards so for a second thee will be slack in the string but after that it tightens we can do it by work energy therom total potential energy=total kinetic energy            m g h    =1\2 mv²             v  =√2gh!            v =√ 20 ×2             v = 2√10 m /s²
```
3 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