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`        A ball moving with a momentum of 15 kgm/s strikes against the wall at an angle of 30 and is reflected with same momentum and angle. Calculate impulse.              	Basically my problem is that the answer given in the book is 15 square root 3 and my answer is 15 kgm/s `
3 years ago

Mohit Dhaka
46 Points
```							Here as per me answer given in book is correct becoz i think you have regarded the angle at an different position This angle of 30°is between normaland path of ball so the impulse generated =2mvcos30°=15square root 3
```
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