(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A 0.010-kg positively-charged particle is accelerated by a uniform electric field directed to the right. The object accelerates from 5.0 to 15.0 m/s while traveling a distance of 0.10 m.

Use the definition of potential energy to determine the change in electric potential energy of the particle. Is the change an increase or a decrease?

2. Relevant equations

Wel = Kf - Ki

Wel = -Delta-U

Delta-V = W/q0

3. The attempt at a solution

The definition of electric potential is equal to -delta-U / q0

Delta-U is negative because the work of the problem from Electric Field comes out to 1 Joule from the definition of work. So, delta-U is -1 J, meaning that the electric potential change is positive since q0 is positive - but I cannot figure out how to find q0's magnitude. I'm pretty sure I'm missing something from the given to determine the value of q0, but I'm otherwise stumped!

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Work and Energy with Electricity

**Physics Forums | Science Articles, Homework Help, Discussion**