(a) If the elevator accelerates upward at 1.6m/s 2 , find the tensions T 1 and T

Question

(a) If the elevator accelerates upward at 1.6m/s2, find the tensions T1 andT2 in the upper and lower strings.
T1 1 N T2 2 N
(b) If the strings can withstand a maximum tension of 73.0 N, what maximum acceleration can the elevatorhave before the first string breaks?
3 m/s2 T1 1 N T2 2 N Two blocks each of mass m = 2.90 kg are fastened to the top of an elevator asin the figure below.(a) If the elevator accelerates upward at 1.6m/s^2, find the tensions T1 andT2 in the upper and lower strings. (b) If the strings can withstand a maximum tension of 73.0 N, what maximum acceleration can the elevatorhave before the first string breaks?

Explanation / Answer

       netacceleration=9.81+1.6=11.41 m/s^2         T2=11.41*2.9=33.089 N [Ans.]         T2=11.41*2*2.9=66.178 N [Ans.]      b>73=2*2.9*(9.81+a)           a=2.78 m/s^2   [Ans.]

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