PHYS 1080 Lecture Notes - Lecture 1: Projectile Motion, Kinematics
5 Dec 2016
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Document Summary
Mechanics is an area of physics which studies the relationship between. Motion (o is subscript) (vo = initial velocity) To describe any motion, we must answer several questions: Displacement: how far has it moved from where it was? x-xo = delta x. Acceleration: is the motion getting faster or slower? a = delta v/delta t = v-vo/t-to. 1-d kinematic equations constant acceleration: v= vo + at v is m/s a is m/s^2 t is s if a = 0: constant velocity / uniform motion v = vo. *** x = xo + not + 1/2 at^2 *** or *** delta x = vot + 1/2 at^2 *** v^2 + vo^2 + 2a(x-xo) x-xo = [(vo + v)/2] t. Every quantity used in kin. has a speci c de nition; sometimes two different quantities can be very similar, but subtle differences can become important. Often it depends on whether a quantity is a scalar or a vector.
