8) When falling through the Martian atmosphere on its parachute (21.5m in diameter, making a circle of 363 m²), Perseverance (1025kg, or 3800N in Martian gravity of 3.71m/s²) fell at about 90 m/s once it had slowed as much as it was going to slow. The thin atmosphere is only about 15g/m³ (compared to 1290g/m' for Earth), so a parachute was never going to be enough on its own, hence rockets being used for the last bit of arrival. What was the drag coefficient of the parachute?
8) When falling through the Martian atmosphere on its parachute (21.5m in diameter, making a circle of 363 m²), Perseverance (1025kg, or 3800N in Martian gravity of 3.71m/s²) fell at about 90 m/s once it had slowed as much as it was going to slow. The thin atmosphere is only about 15g/m³ (compared to 1290g/m' for Earth), so a parachute was never going to be enough on its own, hence rockets being used for the last bit of arrival. What was the drag coefficient of the parachute?
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Transcribed Image Text:8) When falling through the Martian atmosphere on its parachute (21.5m in diameter,
making a circle of 363 m²), Perseverance (1025kg, or 3800N in Martian gravity of
3.71m/s?) fell at about 90 m/s once it had slowed as much as it was going to slow. The
thin atmosphere is only about 15g/m² (compared to 1290g/m² for Earth), so a parachute
was never going to be enough on its own, hence rockets being used for the last bit of
arrival. What was the drag coefficient of the parachute?
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