An Object Starts from Rest and Moves with an Acceleration

question 24

Multiple Choice

An object starts from rest and moves with an acceleration of 2.0 m/s² for 3.0 seconds.It then reduces its acceleration to 1.0 m/s² for 5.0 additional seconds.The velocity 8 seconds from the start of the motion is

• A) 51 m/s.
• B) 38 m/s.
• C) 11 m/s.
• D) 9.0 m/s.
• E) 7.6 m/s.

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Definitions:

Beta Waves

Brain wave patterns associated with active, alert, and waking states, typically seen in EEG recordings.

Electroencephalograph

An instrument used to record the electrical activity of the brain, usually over a period, to diagnose or monitor neurological conditions.

Sleep Research

A field of study that investigates the physiological, psychological, and environmental factors that influence sleep patterns and disorders.

Cerebral Cortex

The outer layer of the brain, responsible for complex cognitive functions, including thought, memory, and consciousness.