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

question 101

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 block?

---

Definitions:

Long-Run Equilibrium

A state in which all firms in a market are producing at their minimum long-run average cost, with no incentive to enter or exit the market.

Monopolistic Competition

A market structure where many companies sell products that are similar but not identical, allowing for competition on factors other than price.

General Snacks

A broad category that includes various snack foods available in the market, without any specific branding implication.

Long-Run Outcome

The eventual results or consequences of economic decisions and market conditions after all adjustments have been made.