Final answer:
To determine the distance the proton travels before reaching its turning point, we need to consider the forces acting on the proton. The electric force between the proton and the charged plane will cause the proton to decelerate. At its turning point, the electric force will be equal in magnitude to the force of gravity acting on the proton.
Step-by-step explanation:
To determine the distance the proton travels before reaching its turning point, we need to consider the forces acting on the proton. The electric force between the proton and the charged plane will cause the proton to decelerate. At its turning point, the electric force will be equal in magnitude to the force of gravity acting on the proton. Using the equations for electric force and gravitational force, we can solve for the distance.
The electric force can be calculated using the formula:
Fe = qE
where Fe is the electric force, q is the charge of the proton, and E is the electric field.
The force of gravity can be calculated using the formula:
Fg = mg
where Fg is the force of gravity, m is the mass of the proton, and g is the acceleration due to gravity.
Setting the electric force equal to the force of gravity, we can solve for the distance:
qE = mg
d = (qE)/mg
Substituting the given values of q (-1.50 x 10^6 C/m^2) and E (the electric field due to the charged plane) into the equation, we can calculate the distance the proton travels before reaching its turning point.