I think gravity and rotation, air
Constructive Force
The moon's gravity is about 1/6th of the earth's.
Force (newtons) = mass (kg) * acceleration (m/s/s) > Acceleration at earths surface radius = 9.82 m/s/s
Gravity.
If the object is moving along a horizontal surface with a constant acceleration,then the net vertical force on it is zero, and the net horizontal force on it is(the pushing force) minus (any kinetic friction force where it rubs the surface).The numerical value of that net force is(the acceleration) times (the object's mass).
The force responsible for keeping you on Earth's surface is the gravitational force. This force is generated by the mass of the Earth, which pulls objects towards its center.
The weight of any object on the surface of the moon is 16.55% of its weight on the surface of the Earth.
When atmospheric pressure on a pond remains constant during hot weather, the force of air on the surface of the pond also remains constant. Atmospheric pressure is not affected by temperature changes alone, so the force exerted by the air on the pond's surface stays the same.
When an object is moving across a level surface at a constant velocity, the pulling force is equal to the force of friction acting in the opposite direction. This force of friction is equal in magnitude and opposite in direction to the pulling force, resulting in a balanced situation where there is no acceleration.
They slowly change the shoreline by moving sand.
Gravity is strongest at the earths surface because it's atmosphere is v dense and so the force inc.this happens because force is directly proportional to density.
Acceleration is constant in free fall because gravity is the only force acting on the object, and it is a constant force that always points downward towards the center of the Earth. This constant force results in a constant acceleration of 9.81 m/s^2 near the surface of the Earth.