Homework question needed because physics teacher doesnt want to help me

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SUMMARY

The discussion centers on calculating the speed of an electron that travels 1.68 meters in 6.74 × 10-8 seconds, resulting in a speed of 24,925,816.02 m/s. The calculation is confirmed as correct, emphasizing the importance of including units in the final answer. The user sought clarification from their physics teacher via Edmodo but received no helpful response, leading to confusion about the problem. The final answer is presented as 24,925,816.02 m/s, with a reminder to always include units.

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Homework Statement


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

Homework Equations


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 :devil:. He didn't answer my second question, I'm now confused.
 
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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:

[tex]\frac{1.68 m}{6.74\cdot 10 ^{ -8} s} = 24925816.02 \frac{m}{s}[/tex]
 
Last edited:
so it is correct and my calculator isn't crazy? thankyou micro so much :D ! yes i won't forget my units! :)
 

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