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## 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.

## Homework Equations

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)