Question

# A planet in a distant solar system is 10 times more massive than the earth and its radius is 10 times smaller. Given that the escape velocity from the earth is 11km s−1, the escape velocity from the surface ofthe planet would be

A
110kms1
B
0.11kms1
C
1.1kms1
D
11kms1
Solution
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#### Escape velocity=√2Gmrvnewvearth=√mnewrearthmearthrnew=  ⎷10110=10vnew=110 kms−1

0
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