PHYS 1300 Lecture Notes - Lecture 13: Kolmogorov Space, Kinetic Energy, Gravitational Energy
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2 Nov 2017
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Phys 1300 lecture 13 work & energy. Work done by a gravity - gravitational potential energy. Mechanical energy: gravitational potential energy and kinetic energy, conservation of energy. In order for work to be done on an object: a force must be applied, the object must move, the force and displacement can not be perpendicular to each other. Where w is the work don by a constant force of magnitude f in moving the object through a. Is the angle between the force and displacement vectors. = cos w = fx x + fy y of of the resulting displacement. Alternatively, this can be written in component form as: Where fx and fy are the components of the force applied and x & y are the components. Work (w): is a ascalar quantity with units of nm or joules (j). Our expression for work contributes to the work.