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A disc of radius R , mass M lies on smooth horizontal surface. Two persons of equal mass m standing on diametrically opposite points. Both persons start moving in same sense, then find angle rotated by disc when both persons complete round trip?

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4 years ago

Vikas TU
14146 Points
```							In same sense as it has been mentioned in the qstn. assuming both v speed as clockwise (let),the disc to be assumed as a rectangular piece of length 2*pi*R and width R (ct from the first person standing)then from, m1 x1 =  m2  x2 we get,M * x = m * (2*pi*R – x)x = 2M*PI*R/(M+m)This is due to one person.Due to two persons the total angle would be=>x = 4M*PI*R/(M+m)
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4 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