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`        A table clock has its minute hand 4.0 cm long. The average velocity of the tip of the minute hand between 6:00 am to 6:30 pm is :-(a) 1.1 X 10-4 cm/s(b) 2.2 X 10-4 cm/s(c) 3.14 X 10-4 cm/s(d) 3.3 X 10-4 cm/s`
4 years ago

erra akhil
208 Points
```							Dear Abhay,According to your question;Time taken=12.5hrs=12.5*60*60=45000sec.θ= π + π/24 = 25π/24.θ = ω t + (α  t2 ) / 2.Since motion of minutes hands in clock is in constant angular velocity, α = 0.θ = ω t on substituting the values we value of; ω= 0.23 π * 10-4 rad/sec.we know,v= r ωhere on calculating v we get;v = 0.92 π * 10-4 cm/s = 3.14 * 10-4 cm/s.Approve if my answer helped you.
```
4 years ago
erra akhil
208 Points
```							Dear Abhay,                  What is the correct answer?
```
4 years ago
ASh
62 Points
```							anybody answer this question fast!!!!!!! PLS........................................................................................
```
2 years ago
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• 18 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions