The minimum velocity required for a sat ellite to remain in its orbit is:

Options

A. 8 km/s
B. 8 km/h
C. 800 km/h
D. 800 m/s

Explanation

To determine the minimum velocity required for a satellite to remain in its orbit, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Orbital Velocity**:
- Orbital velocity is the speed at which a satellite must travel to maintain its orbit around a celestial body, such as Earth. This velocity allows the satellite to balance the gravitational pull of the Earth.

2. **Identify the Options Given**:
- The options provided are:
- A) 8 km per second
- B) 8 km per hour
- C) 800 km per hour
- D) 800 km per second

3. **Recall the Standard Value for Orbital Velocity**:
- The minimum velocity required for a satellite to stay in low Earth orbit is approximately 8 km per second. This is a well-known value in physics and astronomy.

4. **Evaluate Each Option**:
- A) 8 km per second - This matches the known value for orbital velocity.
- B) 8 km per hour - This is much too slow for orbital velocity.
- C) 800 km per hour - This is also too slow for maintaining an orbit.
- D) 800 km per second - This is excessively high and not a feasible value for orbital velocity.

5. **Select the Correct Answer**:
- Based on the evaluation, the correct answer is A) 8 km per second.

### Final Answer:
The minimum velocity required for a satellite to remain in its orbit is **8 km per second**.

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