Kinematics Electrons In a Cathode Ray Tube

[nycjay222]

A) In a cathode ray tube, electrons are accelerated from rest by a constant electric force of magnitude 6.22 x 10−17 N during the first 2.00 cm of tube's length; then they move at essentially constant velocity another 46.5 cm before hitting the screen. Find the speed of the electrons when they hit the screen.

B)How long does it take them to travel the length of the tube?

 

[rl.bhat]

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