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"An object is in free fall when gravity is the only force to move it through space. In reality, free fall is affected by variables such as wind iance, but when physicists discuss free fall, they gener ...
Video Física
"Gravitational force cannot be simulated, but the illusion of gravity can. All it takes for us to think we are being acted upon by gravity, is a force pulling us against a surface, generally the earth ...
Video Física
"The speed at which an object rotates or revolves is called rotational speed. Unlike linear speed, it is defined by how many rotations an object makes in a period of time. The formula for rotational s ...
Video Física
"Rotational inertia measures how much an object resists changing rotation. In linear motion, according to Newton's Second Law, we use mass to gauge an object's resistance to change but in rotational m ...
"It is important to understand the difference between rotations and revolutions. When an object turns around an internal axis (like the Earth turns around its axis) it is called a rotation. When an ob ...
Video Física
"The motion of any object is only meaningful when given relative to something else. Relativity in motion assures us that the laws of Physics don't vary depending on how much inertia an object has. Thi ...
Video Física
"Displacement is the change in a position vector. It is not the same as distance, which is a scalar measurement. The net vector of multiple displacment vectors if found according to the rules of vecto ...
Video Física
"When an object is moving through space this object is called a projectile. Examples of projectile motion include a pen falling off a table, a ball thrown through the air or a cork shot from a champag ...
"The law of conservation of momentum says that if two objects collide, the force lost by one object is equal to the force gained by the other object. The total momentum of the system is the same after ...
Video Física
"Two-dimensional vectors have two components: an x vector and a y vector. Each of these vector components is a vector in the direction of one axis. The sum of the components of vectors is the original ...
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