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Which of the following is the correct formula to find out the orbital velocity?

13. Which of the following is the correct formula to find out the orbital velocity?

1. v = (G * M / r) ^ (1/2), Where G is the gravitational constant, M is the mass of the Earth, and r is the orbital radius
2. v = (G * M / r) ^ (2), Where G is the gravitational constant, M is the mass of the Earth, and r is the orbital radius:
3. v = (G * M / r) ^ (3), Where G is the gravitational constant, M is the mass of the Earth, and r is the orbital radius:
4. v = (G * M / r) ^ (1/3), Where G is the gravitational constant, M is the mass of the Earth, and r is the orbital radius:

Answer: A) v = (G * M / r) ^ (1/2), Where G is the gravitational constant, M is the mass of the Earth, and r is the orbital radius.

Explanation:

(G * M / r) ^ (1/2) or in simple words we can write it as, v = sqrt (G * M / r),