I’m pretty sure it’s D. variable
Answer:
Gravitational potential energy
Explanation:
The gravitational potential energy is the energy that an object has because of its positive with respect to a certain reference level (generally assumed to be the ground level).
The magnitude of the gravitational potential energy is given by

where
m is the mass of the object
g is the strenght of the gravitational field
h is the height of the object with respect to the reference level
From the formula, we see that the higher the object is, the larger its gravitational potential energy is.
Answer:
Explanation:
NEWTON'S FIRST LAW OF MOTION:
a body continues its state of rest or of uniform motion in a straight line provided no net force acts on it. Fnet=0
NEWTON'S SECOND LAW OF MOTION:
when a net force acts on a body it produces acceleration in the body which is directly proportional to the magnitude of the net force and inversely to the mass of the body.F=ma
NEWTON'S THIRD LAW OF MOTION:
to every action there is always an equal but opposite reaction.