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InterviewSolution
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What can you say about the angular speed of an hour hand as compared to that of the Earth’s rotation about its axis ? |
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Answer» The periods of rotation of an hour hand and the Earth are Th = 12 h and TE = 24 h, respectively, so that their angular speeds are \(\omega_h\) = \(\frac{2 \pi}{12}\) rad/h and \(\omega_E\) = \(\frac{2 \pi}{24}\) rad/h. ∴ \(\omega_h\) = 2\(\omega_E\) |
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