# Homework question needed because physics teacher doesnt want to help me

## Homework Statement

An electron travels 1.68 m in 6.74 × 10−8 s.
How fast is it traveling?

## The Attempt at a Solution

(1.68)/ (6.74 x 10 ^ -8) = 24925816.02

i asked the teacher on this education facebook thingy for our school called edmodo if i was getting it right, teacher said he didn't understand what i meant by that . He didn't answer my second question, I'm now confused.

Seems correct!!

However, don't forget your units. This is very important as it will prevent you from making mistakes.

What you should write is:

$$\frac{1.68 m}{6.74\cdot 10 ^{ -8} s} = 24925816.02 \frac{m}{s}$$

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so it is correct and my calculator isn't crazy? thankyou micro so much :D !! yes i won't forget my units! :)