Two Weights Are Connected by a Massless Wire and Pulled

question 354

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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Definitions:

Cold Receptors

Sensory nerve endings that are responsive to decrease in temperature, found in the skin.

Warm Receptors

Sensory receptors in the skin that detect increases in temperature, contributing to the sensation of warmth.

Nociceptor

A sensory receptor that responds to damaging or potentially damaging stimuli by sending signals to the spinal cord and brain.

Thermoreceptor

A type of sensory receptor specialized to detect changes in temperature.