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traggthuyy@gmai traggthuyy@gmai
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5 years ago
The figure shows a system consisting of three blocks, a light frictionless pulley, and light connecting ropes that act horizontally on the upper two blocks.  The 9.0-kg block is on a perfectly smooth horizontal table. The surfaces of the 12-kg block are rough, with µk = 0.30 between the 12-kg and 9.0-kg blocks. The mass M of the hanging block is set so that it descends at a constant velocity of 3.25 m/s.
(a) What is the mass M of the hanging block?
(b) The mass M is now changed to 5.0 kg, causing it to accelerate downward after it is released. What is the acceleration of the hanging mass?
Textbook 
College Physics: A Strategic Approach

College Physics: A Strategic Approach


Edition: 3rd
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anaseemanaseem
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traggthuyy@gmai Author
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5 years ago
Brilliant ツ
SUmmerPeople
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This site is awesome
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Smart ... Thanks!
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