Question

A constant electric field with magnitude is pointing in the p[ositive x- direction

Answer 1

EXERCISE A constant electric field with magnitude 1.50 × 103 N/C is pointing in the positive x-direction. An electron is fired from x-一0.0200 m in the same direction as the electric field. The electron's speed has fallen by half when it reaches x = 0.170 m, a change in potential energy of 4.56 × 10-17 . The electron continues to x =-0.200 m within the constant electric field If there's a change in potential energy of-8.88 x 10-1, as it goes from x-0.170 m to x--Ο.200 m, find the electron's speed in m/s atr :-0.200 m. Hint 3.26e+06 Set the kinetic energy (expressed in terms of speed and mass) equal to the work done by the electric field on the particle, and solve for the speed of the particle.