Kinematics Question 538
Question: A cane filled with water is revolved in a vertical circle of radius 4 meter and the water just does not fall down. The time period of revolution will be [CPMT 1985; RPET 1995; UPSEAT 2002; MH CET 2002]
Options:
A) 1 sec
B) 10 sec
C) 8 sec
D) 4 sec
Show Answer
Answer:
Correct Answer: D
Solution:
For critical condition at the highest point $ \omega =\sqrt{g/R} $
therefore $ T=\frac{2\pi }{\omega }=2\pi \sqrt{R/g}=2\times 3.14\sqrt{4/9.8} $ = 4 sec.
