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

A uniform electrical field can exert a force on a charged particle that effectively neutralizes the force of gravity on the particle causing it to be weightless. What is the strength of the electrical field for a proton?

q = 2.45x10^-14

mass of proton = 10.21x10^-12 kg

2. Relevant equations

F=qE

3. The attempt at a solution

My question is what does that statement make the force?

What I think it means is that gravity is 9.8 m/s^2 so to cancel it out gravity is -9.8m/s^2.

So to sovle it you would use F=mg

so, F = (-9.8m/s^2)(10.21x10^-12 kg)

So Force = -1.00058x^-10

Is that right?

thanks

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# Homework Help: Force exerted by external field

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