Two protons, starting several meters apart, are aimed directly at each other with speeds of 2.00 * 105 m>s, measured relative to the earth. Find the maximum electric force that these protons will exert on each other.

Explanation:

Since, the two protons are at the initial state of point a and point b. Hence, total mechanical energy at point a and point b is as follows.

or,            

where,   = kinetic energy of two protons

So,      

Putting the given values into the above formula we will calculate the value of as follows.

                =

                =

Now, we will calculate the maximum electric field as follows.

      F =

         =

         =

Therefore, we can conclude that the maximum electric force that these protons will exert on each other is .