A glider is attached to a fixed ideal spring and oscillates on a horizontal, friction-free air track. A coin rests atop the glider and oscillates with it. At what points in the motion is the friction force on the coin greatest? The least? Justify your answers.
Last Updated on 22nd February 2016 Giancoli: Chapter 5 chapter 5 5.1 Applications of Newton's Laws Involving Friction Using Newton’s Laws: Kinetic friction acts opposite to the direction of velocity, and is approximately proportional to the Friction, Circular normal force between the two surfaces according a constant as shown in the following formula: Motion, Drag Forces = class Static friction acts in a direction parallel to the two surfaces that are touching, even when they are Physics 7A not moving past one another. Once the maximum force of static friction is exceeded, kinetic friction Spring 2016 takes over and the objects begin moving. UC Berkeley Prof. M. Deweese = Remember: In problems with a slope/inclined plane, the normal force is always perpendicular to the contents 5.1 Applications of slope/plane. Gravity is always vertically downward toward the center of the earth. Newton’s Laws Involving Friction 5.2 Uniform Circular Motion - Kinematics Moving in a circle at a constant speed entails uniform circ