AP EAMCET · PHYSICS · Motion In Two Dimensions
A stone of mass \(2 \mathrm{~kg}\) is tied at one end of a string of length \(2 \mathrm{~m}\) and is whirled in a horizontal circle. If the string can withstand a maximum tension of \(64 \mathrm{~N}\), then the permissible maximum number of rotations per minute is
- A 19
- B \(\frac{60}{\pi}\)
- C \(\frac{152}{3} \pi\)
- D \(\frac{120}{\pi}\)
Answer & Solution
Correct Answer
(A) 19
Step-by-step Solution
Detailed explanation
Mass of stone, \(\mathrm{m}=2 \mathrm{~kg}\) Length of the string \(=\) radius, \(r=2 \mathrm{~m}\) Maximum tension, \(T_{\max }=64 \mathrm{~N}\)…
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