4.16 • An electron (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 accelerating

grid, which is 1.80 cm away. It reaches the grid with a speed of 3.00 X 10^6 m/s. If the accelerating force is constant, compute (a) the acceleration; (b) the time to reach the grid; (c) the net force, in newtons. (You can ignore the gravitational force on the electron.)