MHT CET · Physics · Work Power Energy
A weightless thread can bear tension up to 3.7 kg wt. A stone of mass 500 gram is tied to it and revolved in circular path of radius 4 m in vertical plane. Maximum angular velocity of the stone will be (acceleration due to gravity, \(g=10 \mathrm{~m} / \mathrm{s}^2\) )
- A \(16 \mathrm{rad} / \mathrm{s}\)
- B \(4 \mathrm{rad} / \mathrm{s}\)
- C \(2 \mathrm{rad} / \mathrm{s}\)
- D \(8 \mathrm{rad} / \mathrm{s}\)
Answer & Solution
Correct Answer
(B) \(4 \mathrm{rad} / \mathrm{s}\)
Step-by-step Solution
Detailed explanation
\(T_{max} = 3.7 \times 10 = 37 \mathrm{~N}\) \(T_{max} = mg + m\omega^2 r\)
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