A 186-Kg Block Is Held in Place Against the Spring by by a 81-N

question 53

Multiple Choice

A 1.86-kg block is held in place against the spring by a 81-N horizontal external force (see the figure) .The external force is removed,and the block is projected with a velocity upon separation from the spring.The block descends a ramp and has a velocity at the bottom.The track is frictionless between points A and B.The block enters a rough section at B,extending to E.The coefficient of kinetic friction over this section is 0.28.The velocity of the block is v₃ = 1.4 m/s at C.The block moves on to D,where it stops.The height h of the ramp is closest to

• A) 11
• B) 7.3
• C) 15
• D) 17
• E) 18

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Definitions:

Cartel

An association of independent companies or organizations that agree to limit competition between themselves, often to control prices and production.

Oligopoly

A market structure characterized by a small number of firms dominating the market, leading to limited competition and potentially higher prices for consumers.

Cartels

An association of independent firms or individuals that works together to control prices, limit supply, or restrict competition in a particular market, often illegally.

Cartels

Groups of independent market participants who collude to control prices and output in a particular market, typically to restrict competition.