Question

as earth moves from perihelion to aperihelion, the work done by gravitational pull of the sun on earth is A) positive B) Negative C) zero D) either positive or zero​

Answer 1

Explanation:

When potential energy decreases, the work done by the gravity is positive. From perihelion to aphelion, the potential energy of the planet has increased, therefore the work done by the gravity is negative

Answer 2

Answer:

When potential energy decreases, the work done by the gravity is positive. From perihelion to aphelion, the potential energy of the planet has increased, therefore the work done by the gravity is negative.