The average distance between the Earth and the Sun is 1.5 $\times$ 10¹¹ m. The tangential speed of the Earth in its orbit about the Sun is A) 45 km/s. B) 60 km/s. C) 15 km/s. D) 30 km/s.

Question

Quizplus · Accepted Answer

The tangential speed of the Earth in its orbit around the Sun is approximately 30 km/s. This is calculated using the formula for orbital speed $ v = \sqrt{\frac{GM}{r}} $, where $ G $ is the gravitational constant, $ M $ is the mass of the Sun, and $ r $ is the average distance from the Earth to the Sun.

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