Block a of Mass 5

question 1092

Multiple Choice

Block A of mass 5.0 kg and block X are attached to a rope which passes over a pulley,as shown in the figure.An 80-N force P is applied horizontally to block A,keeping it in contact with a rough vertical face.The coefficients of static and kinetic friction between the wall and block A are μ_s = 0.40 and μ_k = 0.30.The pulley is light and frictionless.The mass of block X is adjusted until block A moves upward with an acceleration of 1.6 m/s².What is the mass of block X?

• A) 9.9 kg
• B) 9.3 kg
• C) 8.7 kg
• D) 8.1 kg
• E) 7.5 kg

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Definitions:

Sympathetic Stimulation

Activation of the sympathetic nervous system, resulting in physiological responses such as increased heart rate and blood flow to muscles.

Metabolic Rate

The rate at which the body uses energy to maintain basic vital functions such as breathing, circulation, and cell production.

Precapillary Sphincters

Ring-like muscles located at the entrance of capillaries, controlling blood flow into the capillaries by contraction and relaxation.

Interstitial Pressure

The pressure within the space between cells, which can influence fluid movement and absorption in tissues.