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`        A wheel starting from rest is uniformly accelerated at 4 rads/s² for 10 seconds, It is allowed to rotate uniformly for the next 10 seconds and is finally brought to rest in the next 10 seconds. Find the total angle rotated by the wheel?`
one year ago

Khimraj
3008 Points
```							Time duration t = 10 sec.angle rotation = θHere the rotation in the first and third part will be same.Hence Total angle rotation,{   }=θ+θ'+θ      {here θ=θ''}=2θ+θ'. ----→(a) We know the equation of kinematics, Put all the values in this equation =0 x 10 +(1/2 x 4 x 10 x 10)θ=200 radiansNow, = =(0+4 x 10)10θ'=400 radiansHence the rotation of total angle , by equation (a)=2θ+θ' = (2 x 200 +400)=800 rad .
```
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