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Grade 11Mechanics

Which way does src=data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABIAAAAWCAIAAABCPVsWAAAAgUlEQVQ4je1SyQ3AMAjzXAzkeZiGZRiGPqpG5KCRoj7rH7EdAwniCPhtERGuIuonaUaANtuM2IP2Udobzmdr+M7mKvcACUa0Bhc2V0EvSEQ672xGYApacihNQ3BfolBtbkGh2tSVbQwf6L7Jh3AVISWVw67yJtM/pjU1gPlNDn/JBd6k90HQWLKHAAAAAElFTkSuQmCC point for the Earth?
(A) Parallel to the NS axis and pointing north.
(B) Parallel to the NS axis and pointing south.
(C) Parallel to the NS axis and pointing east.
(D) Parallel to the NS axis and pointing west.

Profile image of Simran Bhatia
11 Years agoGrade 11
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1 Answer

Profile image of Aditi Chauhan
11 Years ago
The correct option is: (A) parallel to NS axis and pointing north.
The Earth will appear to rotate counterclockwise to a person above the North Pole, accounting for the fact that the Sun rise from the East. Now, by using the right hand thumb rule one can easily get the direction of \overrightarrow{w}, which will run parallel to NS axis and pointing North.
Therefore (A) is the correct option and the rest are ruled out.