Your program should carry out the necessary force calculation and momentum update for the electric force acting on the negative charge. Do not update the momentum or position of the positively charged particle. It should remain still. You might want to review the code you wrote for the Space Voyage lab; it could be helpful. Necessary information for the momentum update The magnitude of the electric force is given by: F_(electric)= 1/(4 \pi \epsilon_0) * (|q_1*q_2|)/(r^2) This force is attractive for oppositely charged objects.