Physics
Mechanics
Easy
Question
A projectile is launched from the surface of Earth with a velocity less than the escape velocity. Its total mechanical energy is
- positive
- negative
- zero
The correct answer is: negative
The potential energy at infinity is taken as 0.
The total minimum energy at infinity in case of the escape velocity should be 0. If an object thrown with velocity less than escape velocity will have energy less than zero, i.e., negative.
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