A projectile is launched from the surface of Earth with a velocity less than the escape velocity. Its total mechanical energy is

Question

A projectile is launched from the surface of Earth with a velocity less than the escape velocity. Its total mechanical energy is (A) positive (B) negative (C) zero (D) depends upon initial velocity

Tardigrade Admin · Accepted Answer

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.

Q. 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

depends upon initial velocity

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.

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.