The figure shows a star having a radius of R and three comets C₁, C_2, and C₃ orbiting the star. The time taken by C₁ is 320 minutes for traversing the entire orbit. Determine the ratios of kinetic energies of C₁ and C₃ if C₁ experiences a force of 12000 N. Consider the masses of C₁, C_2, and C₃ are W, 4W, and 5W respectively.