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A particle at a height h from the ground is projected with an angle of 30 from the horizontal strikes the ground making an angle of 45 with horizontal . It is again projected from the same point bit now with an of 60 with horizontal find the angle it makes with horizontal when it strikes the ground. (A) tan inverse 4 (B) tan inverse 5 (C) tan inverse root 5 (D) tan inverse root 3

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2 years ago

Eshan
2095 Points
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```
2 years ago
hi bye
13 Points
```							Using v = 2u2ghv = 22u sin2gh(vertical comp. when striking) Now tan 45° = 1u cos= 22u sin2ghu2cos2 = u2sin2 + 2gh ......(1)u23144= 2ghu2= 4ghu = 2gh; tan= THvv=34gh.2gh412 gh2=5ghgh=5  i do not knoew the ans
```
6 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