Two weights are connected by a massless wire and pulled upward with a constant speed of 1.50 m/s by a vertical pull P. The tension in the wire is T (see figure). Which one of the following relationships between T and P must be true?
A) T P
B) T = P
C) P + T = 125 N
D) P = T + 25 N
E) P = T + 100 N

Question

Two weights are connected by a massless wire and pulled upward with a constant speed of 1.50 m/s by a vertical pull P. The tension in the wire is T (see figure). Which one of the following relationships between T and P must be true? 
A) T > P 
B) T = P 
C) P + T = 125 N 
D) P = T + 25 N 
E) P = T + 100 N

Quizplus · Accepted Answer

The Answer of Two weights are connected by a massless wire and pulled upward with a constant speed of 1.50 m/s by a vertical pull P. The tension in the wire is T (see figure). Which one of the following relationships between T and P must be true? 
A) T > P 
B) T = P 
C) P + T = 125 N 
D) P = T + 25 N 
E) P = T + 100 N

Two Weights Are Connected by a Massless Wire and Pulled