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`        Drops of water fall  from the roof of a building 9m high at regular intervals of time the first drop reach the ground at the same instant fourth drop start its fall. What are the distance of the second and third drop from the roof? `
one year ago

Khimraj
3008 Points
```							Let the time interval between falling two drops from the roof be t seconds ATQ , a drop take 3t seconds from roof to reach the ground 9 = (1/2)g(3t)² ⇒ t² ⇒ 0.2 d(2nd) drop = 1/2(g)(2t)² =  4md(3rd) drop = 1/2(g)(t)² = 1mdistance = 4-1 =3mHope it clears..................
```
one year 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