A stone is thrown with a velocity less than the escape velocity. The sum of its' KE and PE is

Options

A. positive
B. negative
C. zero
D. may be positive or negative

Answer

B

Explanation

As the stone is thrown with a velocity less than escape velocity. So, it will revolve around velocity. So, it will revolve around the planet. The system will bound the stone and planet together. Ehnce, total energy should be negative.