Answer:
a) an airplane in mid-flight
Explanation:
The gravitational potential energy is defined by
where m is the mass of the object;
g is the gravitational acceleration;
an h is the height of the object;
For the examples, the highest value in potential energy will be for the airplane, because it has the more mass and the higher altitude by far in relation to the baseball or the bird.
Gravitational force is determined by mass
Answer: Option B
<u>Explanation:</u>
According to Universal law of gravity, the gravitational force is directly proportional to the product of the masses of the objects and inversely proportional to the square of the distance between the objects.
Where,
G – gravitational constant =
= masses of two objects
r – distance between the objects
So, as per this law, the gravitational force is found by mass.