4.3 Inclined Plane Questions | Application of Newton's Laws | General Physics

Chad provides a lesson on the application of Newton's Laws to Inclined Plane problems. He begins with how to draw the free body diagram for the forces acting on an object on an inclined plane, and how it is more convenient to use a different set of orthogonal axes rather than the traditional x-axis and y-axis in inclined plane problems. He shows how to split the weight of the object on the inclined plane into components in these new axes and then how to set up the equations for net force using Newton's First and Second Laws.

Chad then presents and provides solutions for three Inclined Plane practice problems. The first involves the inclined plane being a frictionless surface. Ignoring friction makes the set up just a little easier. The second inclined plane practice problem involves static friction as an object is at rest on an inclined plane. The third inclined plane practice problem involves kinetic friction and solving for the coefficient of kinetic friction.

00:00 Lesson Introduction
00:42 How to Draw Free Body Diagrams for Forces Acting on an Object on an Inclined Plane
12:15 Inclined Plane Practice Problem - No Friction
16:08 Inclined Plane Practice Problem with Static Friction
22:52 Inclined Plane Practice Problem with Kinetic Friction

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