To calculate the mass of a planet using a simulation, determine the satellite's speed based on the time it takes to complete an orbit and the total radius of the orbit, which includes the planet's radius and the satellite's altitude. The relationship between the mass of the planet and the orbital speed can be found in physics resources like Wikipedia. It's essential to show effort in the problem-solving process and adhere to forum guidelines when seeking help. The discussion emphasizes the importance of understanding the underlying physics principles involved in the calculation. Properly framing questions in homework forums is crucial for effective assistance.