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## Homework Statement

An electron is accelerated from rest to a velocity of 2.0x10^7 m/s.

a) if the electron travelled 0.10m while it was being accelerated, what was its acceleration?

b)How long did the electron take to attain its final velocity?

V1= 0m/s

V2= 2.0x10^7m/s

d= 0.10m

a=?

t=?

## Homework Equations

Please correct me if I'm wrong but I believe the equations I have to use are V2²=V1²+2ad for part a and V=d/t for part b. Thanks for your help.

## The Attempt at a Solution

I attempted this questions and obtained the following answers, but not sure if my formulas are correct.

Part a) 2x10^18 m/s²

Part b) 4x10^27 s