What does it mean when astronauts are Saylor Foundat @The Introduction

Question 14 / 54: What does it mean when astronauts are described as weightless?

A There is no force of gravity acting on them.

B The centripetal force of gravity is balanced by the centrifugal force due to their motion.

C They are free falling.

D They are in orbit above Earth's atmosphere; therefore, there are no drag forces acting on the
space craft.

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Attribution: Introduction to Mechanics. The Saylor Academy 2014, http://www.saylor.org/courses/phys101/

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