The Figure Shows a System Consisting of Three Blocks, a Light

question 31

Short Answer

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 µ_k = 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?

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Definitions:

Social Space

The conceptual area or environment in which social interactions and relationships occur.

Telecommunication

The exchange of information over significant distances by electronic means, encompassing the internet, phone calls, and other forms of digital communication.

Language Systems

The structured set of symbolic vocal or gestural signs used by humans to communicate thoughts, emotions, and information.