Q.

An artificial satellite moving in a circular orbit around the earth has a total (kinetic + potential) energy  E0. Its potential energy is

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a

−E0

b

1.5 E0

c

2 E0

d

E0

answer is C.

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Detailed Solution

Potential energy = 2 × (Total energy) =  2E0 Because we know =  U=−GMmr and  E0=−GMm2r
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