- #1
mikee
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Homework Statement
An electron is oriented between two charged plates (oriented vertically). The electron experiences a constant force perpendicular to the plates. It has a mass of 9.0 x 10^-31 kg, is moving vertically with a velocity of 2.0 x 10^6m/s and enters the region between the two plates. The region has a height of 1cm and while in it the electron experiences a force of 3.0 x 10^-18N. How long does the electron stay in the region, and what is the horizontal component of velocity as soon as the electron passes through the regionHomework Equations
The Attempt at a Solution
Ok here's how i started it, i figured out the acceleration of the particle by F= ma , a= 3.0 x 10^-18/9.0 x 10^-31 and therefore now that i have the acceleration and the x which = 0.001m i can use those to figure out the time and the velocity, so i figured out the velocity by using the equation Vo^2 + 2(a)(d)= V^2and i used 2.6 x 10^6 for Vo^2 and solved for V and once i found that i used V to solve for the time and i used V= a(t) + Vo is this method correct or am i totally off, would i have to incorporate gravity into it, and also since it says the force is perpendicular to the plates would i have to take the force in the x direction instead of the y direction like i did and if so is it going left or right, those are some details i just wasnt to sure on, if anyone could help thanks alot