Question

The answer is 3. Please provide the answer with attachment if you can...

Answer 1

In the given equation of F, e can be ignored as it is just a number and has no dimensions ( a dimensionless quantity) therefore, it can be concluded that

a^2b^-1=Kg*m*s^-2

therefore

a^4b^-2=kg^2*m^2*s^-4