1. Two objects are hung from strings. The top object (m1) has a mass of 18 kg and the bottom object (m2) has a mass of 12 kg.

a. Calculate the tension in each string. b. Calculate the tension in each string if you pull down on m1 with a force of 45 N [down]. c. Calculate the tension in each string if you pull down on m2 with a force of 45 N [down]. d. Compare your answers to parts (b) and (c) and explain any differences. e. If you keep increasing the downward force on m2, which string will most likely break first? Explain your reasoning by assuming that both strings are identical.