Answer: The Electrostatic force of attraction or repulsion between two charges shows that the Newton's third law applies to electrostatic forces.
Explanation: Consider two Oppositely charged charges separated by distance d.
The electrostatic force exerted by charge 1 on charge 2 is.
By Coulomb's Law :
F1 = k [tex]\frac{Q1 Q2}{d2}[/tex].....................................(1)
The electrostatic force exerted by charge 2 on charge 1 is.
F2 = - k [tex]\frac{Q1 Q2}{d2}[/tex] ................................. (2)
negative sign shows that force are in opposite direction.
From Equation 1 and 2
F1 = - F2
Which implies Newton Third law.
The evidence observed from Newton's third law is that the electrostatic force of attraction exerted by two different charges will be equal in magnitude by acting opposite direction.
Newton's third law states that action and reaction are equal and opposite.
For different charges, say a positive charge (+ Q) and negative charge (-Q), the force of attraction exerted by both charges is equal and opposite.
From Coulomb's law, the force of attraction the two charges will exert on each other is equal and can be calculated as follows;
[tex]F_{12} = \frac{kQ_1Q_2}{r^2}[/tex]
Thus, the evidence observed from Newton's third law is that the electrostatic force of attraction exerted by two different charges will be equal in magnitude by acting opposite direction.
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