L4: External Applied Forces Flashcards
How should Free-Body Diagrams be made to show external forces
Force vectors applied to the sketch of the system with appropriate magnitude, direction, and point of application.
What is the Universal Law of Gravitation?
How are G and g found from the Universal Law of Gravitation
How do you find the sum of the total forces in this System (assuming r is the same for all planets, r = constant)
How can the buoyancy force of this object be derived
What are three observations that can be made from the idea of Buoyancy
How can acceleration be derived from the Buoyancy Force Equation
What are the characteristics of an Ideal String
What are the Characteristics of an Ideal Pulley
- Tension in the string is the same everywhere in the string
- Must be either massless or frictionless
What are the External Forces acting on this System (+ find the acceleration of the pulley)
How can you find the Position, Velocity, and Acceleration of this Object
How could you set this problem up as a Free-Body diagram
How Could you find the acceleration of this object in this series pulley system
Does Static Friction prevent motion?
Static friction always prevents motion.
Static friction will assume whatever magnitude is necessary in necessary in order to prevent motion from occurring, but has a maximum possible value.
How can you derive the Equation for Maximum Static Friction
What does Kinetic Friction do and what does it depend on
Kinetic friction depends only on the materials in contact and the normal force. It always directly opposes the direction of motion.
How can you derive the equation for Kinetic Friction
Are Static and Kinetic Friction the same?
Static friction and Kinetic friction are TWO DIFFERENT THINGS
