when b is zero, there is no x component
Now, the x component of force is
Fx=kqq/(a+b) * cosTheta
where cosTheta= b/(sqrt(a+b))
so, take the deriviative of Fx with respect to b, and solve.
A positive charge Q is on the y-axis at a distance a from the origin, and another positive charge q is on the x-axis at a distance b from the origin.
A) For what values(s) of b is the x-component of the force on q a minimum?
B) For what values(s) of b is the x-component of the force on q a maximum?
1 answer