AP EAMCET · PHYSICS · Laws of Motion
A solid sphere of mass \(2 \mathrm{~kg}\) and radius \(1 \mathrm{~m}\) is free to rotate about an axis passing through its centre. A constant tangential force ' \(\mathrm{F}\) ' is required to rotate the sphere with \(10 \mathrm{rad} \mathrm{s}^{-1}\) in \(2 \mathrm{~s}\) starting from rest. Then the value of \(\mathrm{F}\) is ____
- A \(2 \mathrm{~N}\)
- B \(4 \mathrm{~N}\)
- C \(8 \mathrm{~N}\)
- D \(10 \mathrm{~N}\)
Answer & Solution
Correct Answer
(B) \(4 \mathrm{~N}\)
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