Two Weights Are Connected by a Massless Wire and Pulled

question 39

Multiple Choice

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

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