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Question
For a missile launched with a velocity less than the earth’s escape velocity, the total energy is
Options:
A .  Negative
B .  Positive
C .  Zero
D .  either positive of negative
Answer: Option A
Answer: (a)When the missile is launched with a velocity less than the escape velocity, it will be influenced by our gravitation. So it will constitute a bound system for which the total energy (sum of its kinetic energy and potential energy) will be negative.

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