Question

which statement about gravity is true?
it depends on velocity
it describes a fundamental force and therefore does not depend on other forces
it depends on other forces to work

question 4
1 pts
a 100 - g ball and a 50 - g ball are dropped from a tower. both balls have the same size and there is no air resistance. which answer best describes how they fall
the 50 - g ball hits the ground first
the 100 - g ball hits the ground first
both balls hit the ground at the same time

Explanation:

Gravity is one of the four fundamental forces and acts independently of other forces. In the absence of air - resistance, all objects near the Earth's surface fall with the same acceleration ($g\approx9.8m/s^{2}$), regardless of their mass. This is a result of Newton's second law ($F = ma$) and the gravitational force formula ($F = mg$), where the mass cancels out when calculating the acceleration.

Answer:

For the first question: it describes a fundamental force and therefore does not depend on other forces
For the second question: both balls hit the ground at the same time