A Tired Worker Pushes a Heavy 100-Kg) Crate That Is

question 28

Multiple Choice

A tired worker pushes a heavy 100-kg) crate that is resting on a thick pile carpet. The coefficients of static and kinetic friction are 0.6 and 0.4, respectively. The worker pushes with a horizontal force of 490 N. The frictional force exerted by the surface is

• A) 980 N.
• B) 588 N.
• C) 490 N.
• D) 392 N.
• E) 100 N.

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Definitions:

Atkinson-Shiffrin

A model of memory proposed by Richard Atkinson and Richard Shiffrin that describes it in terms of three stores: sensory memory, short-term memory, and long-term memory.

Activated Memory

Memory that is readily accessible and currently in use.

Limited-Capacity

Refers to the finite amount of information or cognitive resource that an individual can process at one time.

Atkinson And Shiffrin

A model of memory proposed by Richard Atkinson and Richard Shiffrin in 1968, describing three stages of memory: sensory memory, short-term memory, and long-term memory.