A system comprised blocks, a light frictionless pulley, and connecting ropes is shown in the figure. The 9.0-kg block is on a perfectly smooth horizontal table.
The surfaces of the 12-kg block are rough, with between the block and the table. If the 5.0-kg block accelerates downward when it is released, find its acceleration.
A) 1.0 m/s2
B) 1.2 m/s2
C) 1.4 m/s2
D) 1.6 m/s2
E) 1.8 m/s2
Question 2
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 s = 0.40 and 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
The lymphatic system. Lymphatic vessels, major lymph nodes, and lymphatic organs. The direction of l
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