AP EAMCET · PHYSICS · Motion In Two Dimensions
A body of mass \(10 \mathrm{~g}\) is tied to a string of length \(0.4 \mathrm{~m}\) and it is whirled in a horizontal plane with a speed of \(6 \mathrm{~ms}^{-1}\). Then the tension in the string is
- A \(1.9 \mathrm{~N}\)
- B \(36 \mathrm{~N}\)
- C \(0.9 \mathrm{~N}\)
- D \(3.6 \mathrm{~N}\)
Answer & Solution
Correct Answer
(C) \(0.9 \mathrm{~N}\)
Step-by-step Solution
Detailed explanation
Mass of body, \(\mathrm{m}=\log =10 \times 10^{-3} \mathrm{~kg}\) length of string, \(\mathrm{L}=0.4 \mathrm{~m}\) speed, \(v=6 \mathrm{~m} / \mathrm{s}\) In horizontal plane Tension, \(\mathrm{T}=\frac{\mathrm{mv}^2}{\mathrm{r}}\) Here, length of string \(=\) radius of string…
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