The energy they obtain is gravitaional potential energy.
So they are falling toward the centre of earth - but will most likley just land on the crust of our planet.... unless there was a really big hole.
It helped them explain and describe motion
Describe motion/lack of motion of objects.
An objects motion or speed is distance divided by time.
The term used to describe motion is "kinematics." Kinematics is the branch of mechanics that deals with the motion of objects without considering the forces that cause the motion.
The Newtonian kinematic equations are a set of equations that describe the motion of objects in terms of their position, velocity, and acceleration. These equations are used to predict and analyze the motion of objects in various situations. They are based on Newton's laws of motion and provide a mathematical framework for understanding how objects move in response to forces acting on them.
Inertia
The force that pulls falling objects toward Earth is called gravity. It is a natural phenomenon that governs the motion of objects in the universe by attracting them towards each other.
Forces can change the motion of objects by causing them to speed up, slow down, change direction, or deform. This change in motion is governed by Newton's laws of motion, which describe how forces interact with objects to cause them to accelerate or decelerate.
Gravity is the force responsible for the motion of falling objects. All objects are attracted towards the center of the Earth by the force of gravity, causing them to accelerate towards the ground until they reach equilibrium or hit the ground.
Uniformly accelerated motion is used to describe the motion of an object moving with a constant acceleration, such as a falling object under gravity. This concept is applied in physics to analyze and predict the motion of objects in free fall, projectile motion, and other scenarios where acceleration is constant. It helps in calculating the displacement, velocity, and acceleration of an object over time.
Newton's laws of motion are a set of rules that are used to predict and explain the motion of objects in the world. These three laws describe how forces interact with objects to determine their motion and are fundamental principles in classical mechanics.
Interaction between objects that causes a change in motion.