An object of mass m₁ = 4.00 kg is tied to an object of mass m₂ = 3.90 kg with String 1 of length = 0.500 m. The combination is swung in a vertical circular path on a second string, String 2, of length = 0.500 m. During the motion, the two strings are collinear at all times as shown in the figure. At the top of its motion, m₂ is traveling at v = 5.10 m/s.

(a) What is the tension in String 1 at this instant?

(b) What is the tension in String 2 at this instant