0 kg bowling ball is lifted to a storage shelf 1.0 m above the ? oor. A second 7.0 kg ball is lifted to a storage shelf 2.0 m above the ? oor. Which of the following best explains why the measured force of gravity on each ball is nearly identical?
A)The ?nal potential energy of each ball increased.
B)The amount of work required to lift each ball is identical.
C)The distance of each ball from Earth's center of mass is almost identical.
D)The gravitational force of each ball on the other cancels out the force of Earth's gravity.

Question

Quizplus · Accepted Answer

The force of gravity on an object is primarily determined by its mass and its distance from the Earth's center of mass. Since both balls are lifted only a few meters above the floor, their distances from the Earth's center of mass (which is approximately 6,371 kilometers) are nearly identical, making the force of gravity on each ball nearly identical as well.

0 Kg Bowling Ball Is Lifted to a Storage Shelf