AP EAMCET · PHYSICS · Motion In Two Dimensions
Identify the increasing order of the angular velocities of the following
1. earth rotating about its own axis
2. hour's hand of a clock
3. second's hand of a clock
4. flywheel of radius \(2 \mathrm{~m}\) making \(300\mathrm{rpm}\)
- A 1,2,3,4
- B 3,4,1,2
- C 3,4,1,2
- D 4,1,2,3
Answer & Solution
Correct Answer
(A) 1,2,3,4
Step-by-step Solution
Detailed explanation
(1) Angular velocity of earth, \(\begin{aligned} \omega_1 & =\frac{2 \pi}{T}=\frac{2 \pi}{24 \times 60 \times 60} \\ & =\frac{2 \pi}{86400} \mathrm{rad} / \mathrm{s} \end{aligned}\) (2) Angular velocity of hour's hand of a clock,…
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