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In case of an orbiting satellite, if the...

In case of an orbiting satellite, if the radius of orbit is decreased

A

its `KE` decreases

B

its `PE` decreases

C

its `ME` decreases

D

its speed decreases

Text Solution

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The correct Answer is:
B, C
If the radius of an orbiting satellite is decreased, then its `PE` gets decreased. As `ME=KE+PE`, so `ME` also decreases.
`[PE=-(GMm)/r, KE=+(GMm)/(2r)` and `ME =-(GMm)/(2r)]`
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