Multiple choice general knowledge science & technology

How fast must a rocket travel to escape Earth’s gravity?

  1. 14miles a second

  2. 7 miles a second

  3. 20 miles a second

  4. 25 miles a second
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Escape velocity is the minimum speed needed to break free from a planet's gravitational pull without further propulsion. For Earth, this is approximately 7 miles per second (about 11.2 km/s). The other options (14, 20, and 25 miles per second) are all incorrect and significantly higher than the actual escape velocity.

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