In orbit, the force of gravity on an astronaut:

  1. is balanced by a centrifugal force
  2. pushes the astronaut outward
  3. is zero
  4. provides the centripetal force for circular motion
Answer

D) provides the centripetal force for circular motion

Gravity is the only force, and it curves the path. SLO P-11-B-16 · Understanding

Physics MCQ · More Circular and Rotational Motion MCQs · Practise