Electron accleration

Homework Statement

In an electric tube, an electron of mass 9.1*10 to the power of negative 31 kg experiences a net force of magnitude of 8.0*10 to the power of 15 over a distance of 2.0cm.

A)calculate the magnitude of the electron's acccleration
B)assuming it started from rest, how fast would the electron be moving at the end of 2.0cm motion.

Fnet=ma

The Attempt at a Solution

a=?
m=9.1*10 to the power of negative 31
d=2.0cm
Fnet-ma
a=fnet/m
=8.0*10 to the power of 15/.1*10 to the power of negative 31 kg

I didnt get how to question B)

OlderDan
Homework Helper

Homework Statement

In an electric tube, an electron of mass 9.1*10 to the power of negative 31 kg experiences a net force of magnitude of 8.0*10 to the power of 15 over a distance of 2.0cm.

A)calculate the magnitude of the electron's acccleration
B)assuming it started from rest, how fast would the electron be moving at the end of 2.0cm motion.

Fnet=ma

The Attempt at a Solution

a=?
m=9.1*10 to the power of negative 31
d=2.0cm
Fnet-ma
a=fnet/m
=8.0*10 to the power of 15/.1*10 to the power of negative 31 kg

I didnt get how to question B)

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