What force is exerted between two oppositely-charged particles?

What happens to atoms and chemical bonds during a reaction?

In the derivation of rrkm theory, a factor of 1/2 is introduced when equalizing the rates of formation and decomposition of activated complex as keal-hr) = ko this is clearly against the assumption of transition state theory that states all the activated complex in the transition state iss going to the product. find the reason why this factor is introduced here.

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e