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Learn about the center of mass and its role in two-dimensional collisions on Khan Academy.
Understand how objects with uniform density have their center of mass at the geometric center, and how this changes with non-uniform density. Discover the role of center of mass in motion, including rotation and high jumping techniques.
Learn physics with free online courses, videos, and interactive exercises on Khan Academy.
Learn about the relationship between force, mass, and acceleration with Khan Academy's educational video.
Predicting motion using the center of mass (practice) | Khan Academy
Review the key concepts, equations, and skills for the center of mass and two-dimensional collisions, including how to understand center of mass motion.
Khan Academy
In imperial units, the Foot-pound is often used. This is confusing because colloquially the pound is sometimes used as a unit of mass and sometimes force. What is meant here is pound-force, the force due to earth gravity on a one-pound object. The magnitude of these units is often similar as 1 Nm ≃ 1.74 ft ⋅ lbs .