If an astronaut comes out of the artificial satellite, then

Options

A. He flies off tangentially
B. He falls to the earth
C. He performs SHM
D. He continues to move along the satellite in the same orbit.

Answer

To solve the question of what happens to an astronaut who comes out of an artificial satellite, we can analyze the situation step by step.

### Step 1: Understanding the Situation
When an astronaut is inside an artificial satellite, they are in a state of free fall, which means they are moving along with the satellite due to the gravitational force acting on them. The satellite is in orbit around the Earth, and both the astronaut and the satellite are moving at the same orbital speed.

**Hint:** Consider the forces acting on the astronaut while they are inside the satellite.

### Step 2: The Moment the Astronaut Exits
When the astronaut exits the satellite, they are no longer being acted upon by the satellite's propulsion systems, but they still have the same velocity that they had while inside the satellite. This means they will continue to move in the direction they were traveling at the moment they exited.

**Hint:** Think about the conservation of momentum and what happens to the astronaut's velocity when they leave the satellite.

### Step 3: Analyzing the Forces
Once the astronaut is outside the satellite, the only force acting on them is the gravitational force from the Earth. However, since they have the same tangential velocity as the satellite, they will continue to move in a straight line in the direction of that velocity, which is tangential to the orbit.

**Hint:** Remember Newton's first law of motion, which states that an object in motion stays in motion unless acted upon by a net external force.

### Step 4: Conclusion
Since the astronaut continues to move in the same direction and at the same speed as they were when they exited the satellite, they will not fall directly to Earth but will continue to travel along a path that is tangential to the satellite's orbit. Therefore, the correct answer is that the astronaut continues to move along the satellite's orbit.

**Final Answer:** The astronaut continues to move along the satellite in the same orbit (Option 4).