Multiple Stage Kinematics Problems

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Presentation transcript:

Multiple Stage Kinematics Problems The acceleration is constant for a duration, then it changes suddenly and is then constant for another duration, then….

What went on here? What was the displacement?

Stage Problems Sketch the v-t (and/or a-t graph) Identify the variables you must compute List what you know about each stage Final velocity for stage one is the initial velocity for stage two, etc. Choose equation to compute what you need from each stage. Do NOT combine values from different stages! Dttotal = Dt1 + Dt2 +…. Dxtotal = Dx1 + Dx2 +….

Examples P 38, 39 # 111, 90