Two Spherical Objects of *Mass, M* attracts themselves for their **Mutual Gravitation** from a *Distance, d*

One of them is *still* ( not moving ) , another is *orbiting* the first one. Which means first one is at the ** Focus** of the second one's orbit.

So, what's the **Orbiting Speed** of the second object?

**Data:**

- \[\text{M}=1\times 10^{12}kg\]
- \[d=66.73m\]
- \[\text{G}=6.673\times 10^{-11} \text{N}m^2kg^{-2} \]

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