question_answer

DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage ? 1 Centripetal force is a requirement for circular motion.  No work is done on a body by centripetal force in a circular path. The moon revolves around the earth because the earth exerts a radial force on the moon. Does the earth perform work on the moon?

A) No

B) Yes, sometimes

C) Yes, always

D) Cannot be decided