Assume That Earth Is in Circular Orbit Around the Sun

question 24

Multiple Choice

Assume that Earth is in circular orbit around the Sun with kinetic energy K and potential energy U, taken to be zero for infinite separation.Then, the relationship between K and U:

• A)is K = U
• B)is K = -U
• C)is K = U/2
• D)is K = -U/2
• E)depends on the radius of the orbit