Questions
A particle of mass 100 gm tied to a light string of length 40 cm and related along a vertical circular path. What should be the minimum speed at the highest point of its path so that the string does not become slack at any position?
detailed solution
Correct option is B
For the minimum speed at the highest point, the string will be just taut i.e. tension will be just zero.Therefore, mV2l=mg⇒V=gl=10×0.4 m/s=2 m/sTalk to our academic expert!
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