The pull P is just sufficient to keep the 14-N block and the weightless pulleys in equilibrium as shown.The tension T in the upper cable is:
A)14 N
B)28 N
C)16 N
D)9.3 N
E)19 N

Question

The pull P is just sufficient to keep the 14-N block and the weightless pulleys in equilibrium as shown.The tension T in the upper cable is: 
A)14 N 
B)28 N 
C)16 N 
D)9.3 N 
E)19 N

Quizplus · Accepted Answer

Since the system is in equilibrium, the tension in the cable will be equal to the weight of the 14-N block, which is 14 N. Therefore, the correct answer is C.

The Pull P Is Just Sufficient to Keep the 14-N