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An electron is accelerated inside a parallel plate capacitor. The electron leaves the negative plate with a negligible initial velocity and then after the acceleration it hits the positive plate with a final velocity ?. The distance between the plates is 18.0 cm, and the voltage difference is 129 kV.
Solution. a. The particle has positive acceleration when velocity is increasing. On the intervals (0, 1 s) and (6 s, 7 s), velocity is increasing--slope is positive--and so acceleration is positive.b. Acceleration is the slope of the v-t graph.The graph has zero slope whenever the graph is horizontal; that is, whenever the velocity is constant. This happens in the intervals (1 s, 2 s), 5 s, 6 s) and (7 s, 8 s).. Acceleration is the slope of the v-t graph. The graph has zero slope whenever the graph is horizontal; that is, whenever the velocity is constant. This happens in the intervals (1 s, 2 s), 5 s, 6 s) and (7 s, 8 s).