Coulomb's Law (Electric Force) Video Lessons

Concept

# Problem: Two 4.0 kg masses are 4.0 m apart on a frictionless table. Each has 1.0μC of charge. What is the acceleration in m/s2?

###### FREE Expert Solution

Coulomb's law:

$\overline{){\mathbf{F}}{\mathbf{=}}\frac{\mathbf{k}{\mathbf{q}}_{\mathbf{1}}{\mathbf{q}}_{\mathbf{2}}}{{\mathbf{r}}^{\mathbf{2}}}}$

Newton's second law:

$\overline{){\mathbf{\Sigma }}{\mathbf{F}}{\mathbf{=}}{\mathbf{m}}{\mathbf{a}}}$

F = ma

a = F/m

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###### Problem Details

Two 4.0 kg masses are 4.0 m apart on a frictionless table. Each has 1.0μC of charge. What is the acceleration in m/s2?