An electron of mass 9.11*10^-31 kg leaves one end of a TV picture tube with zero initial speed and travels in a straight line to the acceleration grid, which is a distance 2.6 cm away. It reaches the grid with a speed of 3.3*10^6 m/s. The accelerating force is constant.
Find the acceleration.
Find the time to reach the grid.
Find the net force. (You can ignore the gravitational force on the electron).
Find the acceleration.
Find the time to reach the grid.
Find the net force. (You can ignore the gravitational force on the electron).
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vfinal^2=vinit^2+2ad
(3.3*10^6)^2=0+2(9.11*10^-31kg)d
solve for d and that should get you started.
to find time use another of the kinematic eqs and to find force use f=ma
(3.3*10^6)^2=0+2(9.11*10^-31kg)d
solve for d and that should get you started.
to find time use another of the kinematic eqs and to find force use f=ma