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+1 vote
1.7k views
in Physics by (65.8k points)

An artificial satellite moving in a circular orbit around earth has a total (kinetic + potential energy) Eo, its potential energy is 

(A) – Eo 

(B) 1.5 Eo 

(C) 2 Eo 

(D) Eo

1 Answer

+2 votes
by (71.2k points)
selected by
 
Best answer

Correct option: (C) 2 Eo

Explanation:

PE = [(– GMm) / r]               (1)

KE = [(GMm) / (2r)]

TE = [(– GMm) / (2r)]

given is TE = Eo hence 

Eo = [(– GMm) / r] × (1/2)

from (1)

Eo = (PE / 2)

hence PE = 2Eo     

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