Chapter 6, Problem 44AP

An object of mass m₁ = 4.00 kg is tied to an object of mass m₂ = 3.00 kg with String 1 of length (ℓ = 0.500 m. The combination is swung in a vertical circular path on a second string, String 2, of length ℓ = 0.500 m. During the motion, the two strings are collinear at all times as shown in Figure P6.30. At the top of its motion, m₂ is traveling at v = 4.00 m/s. (a) What is the tension in String 1 at this instant? (b) What is the tension in String 2 at this instant? (c) Which string will break first if the combination is rotated faster and faster?

Figure P6.30