Yes, in the absence of air resistance (friction), all bodies would fall at the same rate, regardless of their mass or composition. This is because the acceleration due to gravity is constant for all objects near the Earth's surface.

Here's why:

* Newton's Law of Universal Gravitation: This law states that every object in the universe attracts every other object with a force proportional to the product of their masses and inversely proportional to the square of the distance between them.

* Force and Acceleration: The force of gravity acting on an object is what causes it to accelerate downwards. The acceleration due to gravity is determined by the mass of the Earth and the distance between the object and the Earth's center.

* Mass and Acceleration: While the force of gravity is stronger for more massive objects, their inertia (resistance to change in motion) is also greater. These two effects cancel each other out, resulting in the same acceleration for all objects.

The classic example:

Imagine a feather and a hammer dropped simultaneously from the same height on the moon (where there is no air resistance). They would fall at the same rate and hit the surface at the same time. This experiment was famously conducted by astronaut David Scott during the Apollo 15 mission.

Air resistance:

Air resistance is a type of friction that opposes the motion of objects through the air. It depends on factors like the object's shape, size, and speed. This is why a feather falls much slower than a hammer in Earth's atmosphere.

In conclusion:

In a vacuum, where there is no air resistance, all bodies would fall at the same rate due to the constant acceleration of gravity.