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A disc is performing pure rolling on a smooth stationary surface with constant angular velocity as shown in figure. At any instant, for the lower most point of the disc –
  • a)
    velocity is v, acceleration is zero
  • b)
    velocity is zero, acceleration is zero
  • c)
    velocity is v, acceleration is v2/R
  • d)
    velocity is zero, acceleration is v2/R
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
A disc is performing pure rolling on a smooth stationary surface with ...
As the disc is in combined rotation and translation, each point has a tangential velocity and a linear velocity in the forward direction. From figure

vnet (for lowest point) = v – Rω = v – v = 0 and acceleration

(since linear speed is constant)
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A disc is performing pure rolling on a smooth stationary surface with constant angular velocity as shown in figure. At any instant, for the lower most point of the disc –a)velocity is v, acceleration is zerob)velocity is zero, acceleration is zeroc)velocity is v, acceleration is v2/Rd)velocity is zero, acceleration is v2/RCorrect answer is option 'D'. Can you explain this answer?
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A disc is performing pure rolling on a smooth stationary surface with constant angular velocity as shown in figure. At any instant, for the lower most point of the disc –a)velocity is v, acceleration is zerob)velocity is zero, acceleration is zeroc)velocity is v, acceleration is v2/Rd)velocity is zero, acceleration is v2/RCorrect answer is option 'D'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A disc is performing pure rolling on a smooth stationary surface with constant angular velocity as shown in figure. At any instant, for the lower most point of the disc –a)velocity is v, acceleration is zerob)velocity is zero, acceleration is zeroc)velocity is v, acceleration is v2/Rd)velocity is zero, acceleration is v2/RCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A disc is performing pure rolling on a smooth stationary surface with constant angular velocity as shown in figure. At any instant, for the lower most point of the disc –a)velocity is v, acceleration is zerob)velocity is zero, acceleration is zeroc)velocity is v, acceleration is v2/Rd)velocity is zero, acceleration is v2/RCorrect answer is option 'D'. Can you explain this answer?.
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