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Onyx Kam

onyxkam | Student

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9/26/2022

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-If a constant force F acts over a distance d and F is parallel to d, then the work done by F is the product of force and distance: W= Fd
-The application of force over a distance and the resulting change in energy of the system that the force acted on, give rise to the concept of work.
Work at an Angle:
When force is done at an angle, the formula becomes:
Kinetic Energy:
The Work-Energy Theorem:
-Potential Energy-The energy an object or system has by virtue of its position or configuration
-gravitational potential energy, Ug, is the energy stored by virtue of an object’s position in a gravitational field.
-If an object of mass m is raised to a height h (small enough that g stays essentially constant over this altitude change) then the increase in the object’s gravitational potential energy is…
Conservation of Mechanical Energy:
E= K + U
Conservation of Energy with Nonconservative Forces
-The equation
Holds if no nonconservative forces are doing work. However, if wokr is done by such forces during the process under investigation, then the equation needs to be modified to account for this work as follows:
-Power is the rate at which work gets done (or energy gets transferred, which is the same thing).
-The unit of power is the joule per second (J/s), which is renamed the watt, and symbolized W