Halliday, Resnick & Walker — Force and Motion-I: Problem 51

51 Figure 5-37 shows two blocks connected by a cord (of negligible mass) that passes over a frictionless pulley (also of negligible mass). The arrangement is known as Atwood’s machine. One block has mass \(m_1 = 1.30 \text{ kg}\); the other has mass \(m_2 = 2.80 \text{ kg}\). What are (a) the magnitude of the blocks’ acceleration and (b) the tension in the cord?