## Force and Motion 2 - Applications of Newton's Laws

• Using Newton's first law: Particles in equilibrium
• Lecture (20:40)
• Definition of equilibrium as a state in which no net force acts on an object, and an application to a weight suspended by two strings
• Using Newton's second law: Dynamics of particles
• Lecture (10:37)
• Acceleration of an object when a net force acts on it, and the application to find the acceleration of masses suspended across a pulley (Atwood machine)
• Dynamics of particles, Example 2
• Lecture (13:10)
• Solving an example problem of a mass pulled up an incline
• Frictional forces
• Lecture (26:36)
• Definition of static and kinetic friction using a demonstration, and the corresponding coefficients of static and kinetic friction to be used with the normal force
• Drag
• Lecture (18:15)
• Definition of drag for an object moving through a fluid or gas and dependence on speed, Also terminal speed discussed.
• Dynamics of circular motion
• Lecture (24:24)
• Applying Newton's second law to circular motion, with two examples of a car going around a flat and banked track
• Please note that sin(theta) should be tan(theta) for the banked track example