Physics 1401A/B Lecture Notes - Lecture 2: Free Fall
2 Jan 2019
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Document Summary
Time ( ) is always plotted along the axis. Position-time graph the position time graph of an accelerated motion is curved. Slope at any time is the instantaneous velocity. Magnitude of velocity (speed) is large where the curve is steep. Velocity is plotted along the axis study objects moving with uniform/constant velocity (0 acceleration) or uniform acceleration (velocity changing, but at a constant rate) The velocity time graphs for both uniform velocity and uniform acceleration are always straight lines. Slope at any time is the instantaneous acceleration. Area under the line is the displacement of an object. Free fall: the motion of a falling object where the only force acting on the object is gravity. Gravity moves objects downward with a constant acceleration of 9. 8. Maximum height of an object thrown directly up. Half of the time it returns to original height.
