Coefficient of Friction - Inclined Planes How is the coefficient of friction used in problems involving inclined planes? On an inclined plane the basic principles are the same as for coefficient of...
Coefficient of Friction - F = ma How do we apply Newton’s Second Law (F = ma) in problems involving friction? The coefficient of friction combined with F = ma allows you to determine an object's mo...
Coefficient of Friction What is friction? Friction is a force between a surface and an object that acts to resist motion of the object across the surface On a horizontal surface with no forces acti...
Resolving Forces If a single force is applied at an angle to the direction of motion it will need to be resolved into components of the force that act perpendicular to each other. Why resolve a for...
Connected Bodies - Pulleys What is a pulley (or peg)? A pulley is a wheel like device that rotates as a string passes over it allowing motion of any particles attached to the string The term ‘strin...
Connected Bodies - The Lift Problem What is the lift problem? The lift problem involves objects (particles) that are directly in contact with each other – typically a person or crate in a lift If i...
Connected Bodies - Ropes & Tow Bars What are connected bodies/particles? The phrase connected particles refers to situations where two (or more) bodies (objects) are connected in some way. Comm...
F = ma What is Newton’s First Law of Motion (N1L)? An object at rest will stay at rest, and an object moving with constant velocity will continue to move with constant velocity, unless an unbalance...
Equilibrium in 2D What does two dimensions (2D) mean in mechanics? In two dimensions, a particle may be considered as existing and being able to move around two-dimensional space rather than in a ...
