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. f 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.

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