Answer:
5.72 m/s^2
Step-by-step explanation:
The first step is toc calculate the electric force between the charged masses by applying Coulomb's law. The formula is expressed as
F = kq1q2/r^2
where
F is the force between the charged particles
q1 and q2 are the charges
k is the Coulomb's law and its value is 9 x 10^9NC/m^2
From the information given,
q1 = q2 = 75.045 μC = 75.045 x 10^- 6 C
r = 2.85
By substituting these values into the formula,
F = [9 x 10^9 x (75.045 x 10^- 6)^2]/2.85^2
F = 6.24 N
Recall,
Force = mass x acceleration
From the information given,
mass = 1.09
acceleration = Force/mass = 6.24/1.09
acceleration = 5.72 m/s^2
The initial acceleration of each mass is 5.72 m/s^2