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`        S= (2t2 + 5t2) i^ + 2t2 j^ - 5k. what is acceleration at time 2 second `
5 months ago

## Answers : (1)

Arun
23013 Points
```							Dear Krishna V = dS/dt = 14 t i + 4 t j – 0hence acceleration a = dV/dt = d2S/dt2 = 14 i + 4j hence after two seconds it will be 14 i + 4j = sqrt (196 + 16) = sqrt (212)
```
5 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