Four plants of equal mass M are hanging from a ceiling in a vertical line starting with t1 hanging from the ceiling, then 72 hanging from t₁, t₃ hanging from t₂, and t₄ hanging from t₃. What is the magnitude of the tension t₂?
a) 32Mg
b) 0 Mg
c) 3Mg
d) 2Mg
e) 23Mg
