Q.
A satellite going round the earth in a circular orbit loses some energy due to a collision. Its speed is v and distance from the earth is d, then
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a
d will increase, v will increase
b
d will increase, v will decrease
c
d will decrease, v will decrease
d
d will decrease, v will increase
answer is D.
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Detailed Solution
Total energy = −GMm2rAs energy decreases r decreases & v=GMr increases
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