CHEM 1R03 Lecture 6: SPH3U,T3L4,KE
28 Nov 2017
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Document Summary
Work done on an object equals its kinetic energy. Ke is always referenced with respect to v1=0. Kinetic energy is the energy possessed by an object due to its motion. Think of how the splatter of a watermelon will compare if it was moving at 2m/s compared to 22m/s. When things are moving at high velocities, the have a greater ability to do damage, thus they have a greater amount of energy. Using the work-energy theorem, we can derive a formula to calculate kinetic energy: Therefore, the equation to calculate kinetic energy is: A pitcher on the blue jays throws a 146. 1g baseball at 45m/s. E is energy in joules (j) m is mass of the object in kg v is the velocity of the object in m/s energy does it have? (1m/s = 2. 24 mi/h) A 25kg tank shell has a ke of 3. 7x107j.
