PHY 102 1st EditionOutline of Last LectureI. Galileoa. Motioni. States of motionii. Restiii. ProofII. Rectilinear III. Distance equationsOutline of Current Lecture I. Uniformly Accelerated Motiona. Exampleb. Y InterceptII. Equations of MotionIII. Steps of solving kinematic problemsIV. Graphs of Motiona. Constant motionb. Uniformly Accelerated MotionCurrent LectureI. Uniformly Accelerated Motiona. Which of the following statements most accurately describes the motion of bicycle B in comparison to bicycle A at t = 5 seconds?i. B is going faster than A Aii. A is passing BThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.iii. B is speeding up Biv. B is moving in the opposite direction of Ab. Y intercepti. In a position-time graph, the y intercept represents theposition at the start of measurement.II. Equations of Motiona. Constant Motion (a=0): x = x0 + vavetb. Uniformly Accelerated Motioni. vinst = v0 + atii. x = x0 + v0t + ½ at2iii. vinst2 – v02 = 2a∆xIII. How to solve kinematic problems:a. Determine the type of motion – constant or uniformly acceleratedb. Identify what you are seekingc. Identify the info that you haved. Find an appropriate relationship between all the variablese. Solve the relationship for the unknown variablef. Insert equations including units and solveg. Check to see if your solution seems reasonableIV. Graphs of Motiona. Constant Motioni. PT Graphs1. Linear2. Slope = velocity3. Area under the line is meaninglessii. VT Graphs1. Horizontal Lines2. Slope = acceleration3. Slope = 04. Area under the line = displacement5. Does not show positionb. Uniformly Accelerated Motioni. PT Graphs1. Curved2. Tangent to curve = velocity instantaneously3. Area under the curve is meaninglessii. VT Graphs1. Non-horizontal2. Slope = acceleration3. Slope ≠04. Area under the curve is displacement5. Does not show positioniii. If the instantaneous slope is greater at the left of the graph and smaller at the right of the graph, the object is slowing
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