A satellite of mass m moves around the earth in a circular orbit with speed v. The potential energy of the satellite is -
A
mv 2
B
– mv 2
C
mv 2
D
– 
mv 2
mv 2
Text Solution
Verified by ExpertsThe correct answer is:
B
U = – 
, kinetic energy = 
U = (–2) 
= –2 × kinetic energy
= –2 × 
mv 2 = – mv 2
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