What is the escape velocity on Earth?
- A. 7.9 km/s
- B. 9.8 km/s
- C. 11.2 km/s
- D. 12.4 km/s
Explanation
Escape velocity depends on Earth’s mass and radius, not on the mass of the escaping object, and is about 11.2 km/s at the surface. The 9.8 km/s option is the value of gravitational acceleration, not escape velocity.