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Explanation of centripetal acceleration and its relation to velocity and radius.
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Check your understanding of forces and acceleration in this set of free practice questions aligned to NGSS standards.
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Learn how to analyze the motion of one or more masses moving together as a system, using the example of two masses hanging from a pulley.
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Analyzing systems. Three box system problem. Masses on incline system problem. Science>. Physics archive>. Forces and Newton's laws of motion>. Treating systems.
Velocity and acceleration vectors - Khan Academy
Course: Pixar in a Box > Unit 7. Lesson 2: The physics of particle systems. Start here! Graphing motion over time. Position, velocity and acceleration. Vector addition. Velocity and acceleration vectors. Understanding net forces.
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We can calculate the slope of a tangent line using the definition of the derivative of a function f at x = c (provided that limit exists): lim h → 0 f (c + h) − f (c) h. Once we've got the slope, we can find the equation of the line. This article walks through three examples.
Middle school physics - Khan Academy
Welcome to middle school physics! In this course, you'll develop a foundation in the physical laws that govern our world. From forces and motion to energy and waves, learn about the principles that explain how and why things work the way they do. Learn more.
Khan Academy
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