Three objects are connected by massless wires over a massless frictionless pulley as shown in the figure. The tension in the wire connecting the 10.0-kg and 15.0-kg objects is measured to be 133 N. What is the tension in wire A?
A) 87.5 N
B) 245 N
C) 280 N
D) 333 N
E) 517 N
Answer: D
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