Two blocks each of mass m = 3.70 kg are fastened to the top of an elevator as in the figure.
A) If the elevator has an upward acceleration a = 1.60 m/s2, find the tensions T1 and T2 in the upper and lower strings.
T1=____
T2=____
B) If the strings can withstand a maximum tension of 92.0 N, what maximum acceleration can the elevator have before the upper string breaks?