PHYS 101 Lecture Notes - Lecture 10: Theodolite
17 Jun 2015
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Phys 101: physics for the life sciences lecture 10: dynamics ii. How to solve force problems: read the question carefully, draw a picture if not provided. Isolate the objects you are interested in and for each object draw a diagram (free body. Diagram - fbd = simple diagram of the object with all the forces acting on the object included. Do not include forces the object exerts on other things): establish a convenient coordinate system on each of your diagrams. Find the components of the forces along the axes (don"t have to be the same for all of the bodies: write out all of the forces on your fbds using. Vector notation: apply newton"s second law to each fbd. T 1 = t 2 a1x=a2y: eliminate as many unknowns as possible using physics intuition, solve newton"s second law for each of the quantities you are interested in. Calculate a)the acceleration of the masses and b)the tension in the cord.
