Help with multiple choice physics questions

[nolife123]

Homework Statement

An electron enters an electric field between two horizontal parallel plates with a speed of 4.00 x 106 m/s. The electric field between the plates is 175 V/m. The distance (y) between the plates is 30 cm

Relevant Equations

Determine the acceleration required to bring the electron to a stop.
Select one:
a. 9.81 m/s2
b. 3.6 x10-24 m/s2
c. 3.1 x 1013 m/s2
d. 2.8 x 106 m/s2

Determine the distance the electron travels into the plates before stopping.
Select one:
a. 0.27 m
b. 0.35 m
c. 0.13 m
d. 0.26 m

im not sure if it’s “d” for question 1 and if it’s b for question 2...

 

[PeroK]

Homework Statement:: An electron enters an electric field between two horizontal parallel plates with a speed of 4.00 x 106 m/s. The electric field between the plates is 175 V/m. The distance (y) between the plates is 30 cm
Relevant Equations:: Determine the acceleration required to bring the electron to a stop.
Select one:
a. 9.81 m/s2
b. 3.6 x10-24 m/s2
c. 3.1 x 1013 m/s2
d. 2.8 x 106 m/s2

Determine the distance the electron travels into the plates before stopping.
Select one:
a. 0.27 m
b. 0.35 m
c. 0.13 m
d. 0.26 m

im not sure if it’s “d” for question 1 and if it’s b for question 2...

How did you calculate those answers?

 

[haruspex]

Homework Statement:: An electron enters an electric field between two horizontal parallel plates with a speed of 4.00 x 106 m/s. The electric field between the plates is 175 V/m. The distance (y) between the plates is 30 cm
Relevant Equations:: Determine the acceleration required to bring the electron to a stop.

I have no idea what the question is asking.

Any acceleration will bring it to a stop if applied against the velocity for a sufficient period. But where is this acceleration coming from?
We have enough information to determine the trajectory of the electron (I assume its initial velocity is parallel to the plates), and based on that it is not going to stop unless it hits a plate. (We don't know where in the gap it is injected.)

So the question seems to be referring to some other force being applied, but if so it should be asking for a force, not an acceleration.

Is this the question exact wording of the question as given to you? Is it a translation?