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PHYS171_f11_lecture_05

# PHYS171_f11_lecture_05 - PHYS171 Principles of Physics I...

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PHYS171 Principles of Physics I Prof. Arthur La Porta Assistant Professor, Department of Physics, Institute of Physical Science and Technology Maryland Biophysics Program Rm 1111, IPST building (building #085) Chapter 2 Constant acceleration Using calculus and definition of velocity, acceleration, we derived. t a v v x xi xf + = 2 avg , xf xi x v v v + = 2 2 t a t v x x x xi i f + + = ( ) i f x xi xf x x a v v + = 2 2 2

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Chapter 2 Calculus in Kinematics dt dx v = dt v dx = = f i t t i f dt v x x dt dv a = dt a dv = = f i t t i f dt a v v ( ) () () () 10 11 12 12 11 11 33 0 . 3 4 4 0 . 3 0 . 3 t t dt d t a t t dt t t x t t v i f t t f i = = = = = If you are given a , v or x as a function of t you can use derivatives or integrals to find other quantities. For instance, find position and acceleration if given v(t)= 3.0 t 11 A train car moves along a long straight track. The graph shows that
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PHYS171_f11_lecture_05 - PHYS171 Principles of Physics I...

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