Which of the following statements is/are correct? 1. Angular velocit

Which of the following statements is/are correct?

1. Angular velocity for all locations on the Earth’s surface is the same while linear velocity varies.
2. Linear velocity is maximum at the equator and minimum at the poles.

Select the correct answer using the code given below.

[amp_mcq option1=”1 only” option2=”2 only” option3=”Both 1 and 2″ option4=”Neither 1 nor 2″ correct=”option3″]

This question was previously asked in

UPSC CDS-1 – 2024

Both 1 and 2 are correct.

Angular velocity (ω) is uniform for all points on a rotating rigid body (like the Earth) as they complete one rotation in the same time. Linear velocity (v) is related to angular velocity by v = rω, where r is the perpendicular distance from the axis of rotation.

At the equator, ‘r’ is the maximum (Earth’s radius), resulting in maximum linear velocity. At the poles, ‘r’ is zero, resulting in zero linear velocity. Therefore, angular velocity is constant across the Earth’s surface, while linear velocity varies with latitude, being maximum at the equator and minimum (zero) at the poles.

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