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physics lab - Physics 121Q General Physics Experiments 3...

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Physics 121Q General Physics Experiments 3 and 4: Motion Up and Down an Incline Plane Abstract: This report presents the observation of a cart moving up and down an incline on a frictionless plane of movement. A cart was rolled down a steep and shallow incline going upwards as well as a steep and shallow incline going downwards. The position time and velocity graphs were plotted using a motion sensor and a linear regression calculated the slope of the velocity graph. We noticed an increase in the velocity of the cart traveling down the plane as the angle of incline increased an increased velocity up a steep incline and a lesser velocity going up a shallow incline. Values of velocity ranged from -1.20m/s to - 3.20m/s. Conclusively, this shows that the acceleration and velocity going up and down a steep incline is greater than the velocity and acceleration going up and down a shallow incline. Also, exemplifying the influence angle of incline has on velocity and acceleration.
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Procedure: First, the apparatus was set up to observe motion going down an inclined plane, so it was angled downwards towards the motion sensor; the ramp was set at a relatively low angle of incline. The cart was let go right after the motion sensor was started. The angle of incline was then increased, and again the cart was let go right after the motion sensor was started. Both of these runs were plotted against a distance versus time graph and by taking the slope of the graph, a velocity versus time graph was generated. The apparatus was then set up to observe motion going up and inclined plane, so it was angled upwards away from the motion sensor. The angle of incline was set at a relatively small amount and the cart was pushed up the ramp as the motion sensor started taking measurements. Then the angle of incline was again increased and the cart was pushed up the ramp while the motion sensor was started. Both of these runs were plotted against a distance versus time graph and by taking the slope of the graph, a velocity versus
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physics lab - Physics 121Q General Physics Experiments 3...

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