Multiple choice

While in orbit, shuttles traveled around the Earth at ________ to remain in orbit.

  1. 500 mph (800 km/h)

  2. 17,500 mph (28,200 km/h)

  3. 1,500 mph (2,400 km/h)

  4. 5,000 mph (8,000 km/h)

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

To maintain a stable low Earth orbit, the Space Shuttle had to travel at approximately 17,500 mph to balance gravitational pull with centrifugal force.