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Grade: 12th pass
`        Dear sir, please send the solution to attach ed file`
8 months ago

## Answers : (1)

Vikas TU
11771 Points
```							Dear student y = 5 Sin (20t + pie/3) The least time after which acceleration become zero = ? Velocity = 100 Cos  (20t + pie/3) Acceleration = -2000tSin(20t + pie/3)a = 0 (20t + pie/3)  = pie ( because it is least value at which sin function will become zero again)20t = 2pie/3 t = pie/30 D is correct option Good Luck
```
7 months ago
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