A net force of 14 N is applied to a 9 kg mass over a distance of 8 m, prompting a discussion on calculating the increase in kinetic energy. The initial attempts at solving the problem incorrectly applied the formula, leading to confusion about the necessary factors, particularly the factor of 2 in the kinetic energy equation. The correct formula for kinetic energy is KE = 1/2 mv², which requires determining the final velocity first. Additional resources were shared for understanding basic equations of motion. The conversation emphasizes the importance of correctly applying physics principles to solve for kinetic energy.