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A canon fires two shells in succession with velocity 200m/s,the first at 60° and the second at 45° with horizontal, the azimuth being the same. Find the time interval between firings if the shell collide.Azimuth mean
A canon fires two shells in succession with velocity 200m/s,the first at 60° and the second at 45° with horizontal, the azimuth being the same. Find the time interval between firings if the shell collide.Azimuth mean

```
4 years ago

Vikas TU
14149 Points
```							During collision, the horizontal distance covered would be same and hence time for both shells fired.that is:x = 200cos60t andx = 200(cos45)(t + t')solving these two eqns.,cos45 (t+t') = cos60 t(t+t')/root2 =  t/22t + 2t’= t*root(2)t’= t(root2 – 2)/2time interval => (t’- t)/t = > (root2 –4)/2
```
4 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