If a rocket is fired with a speed v = 
near the earth's surface and coasts upwards, its speed in the interstellar space is -
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
According to law of conservation of energy
mv 2 – 
+ 0
= 
mv 2 – 
= v 2 – 
= v 2 – v e 2
v 1 = 
= 
= 
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