A wet, open umbrella is held vertical and is twirled about the handle at a uniform rate…
Physics · JEE Advanced · NTA Exams — Rotational Motion
A wet, open umbrella is held vertical and is twirled about the handle at a uniform rate of 21 revolutions in 44 second. If the rim of the umbrella is a circle of 1 metre in diameter and the height of the rim above the floor is 4.9 metre, then the angular speed of the umbrella is :
- 3 radian/sec
- 1.5 radian/sec
- 1 radian/sec
- \(\sqrt{2.5}\) radian/sec
Answer
(A) 3 radian/sec
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