CIE A Level Maths: Mechanics复习笔记4.1.1 Work
Work What does the term work mean in Mechanics? In Mechanics the word work refers to the work done by a force when it causes an object to move Mechanical work happens when both a force is applied a...
CIE A Level Maths: Mechanics复习笔记3.3.5 Coefficient of Friction - Harder Problems
Coefficient of Friction - Equilibrium How is friction used when a body is in equilibrium? When a body is in static equilibrium under the action of a number of forces, including friction, the value ...
CIE A Level Maths: Mechanics复习笔记3.3.4 Coefficient of Friction - Inclined Planes
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...
CIE A Level Maths: Mechanics复习笔记3.3.3 Coefficient of Friction - F = ma
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...
CIE A Level Maths: Mechanics复习笔记3.3.2 Coefficient of Friction
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...
CIE A Level Maths: Mechanics复习笔记3.3.1 Resolving Forces & Inclined Planes
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...
CIE A Level Maths: Mechanics复习笔记3.2.4 Connected Bodies - Pulleys
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...
CIE A Level Maths: Mechanics复习笔记3.2.3 Connected Bodies - The Lift Problem
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...
CIE A Level Maths: Mechanics复习笔记3.2.2 Connected Bodies - Ropes & Tow Bars
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...
