A Particle Starts from Rest at Xi = 0 and Moves

question 49

Multiple Choice

A particle starts from rest at xi = 0 and moves for 10 s with an acceleration of +2.0 cm/s². For the next 20 s, the acceleration of the particle is −1.0 cm/s². What is the position of the particle at the end of this motion?

• A)zero
• B)+3.0 m
• C)−1.0 m
• D)+2.0 m
• E)−3.0 m

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Definitions:

Difficult Task

A task that requires significant effort, skill, or knowledge to complete, and often poses a challenge to the individual attempting it.

Thalamus

A part of the brain located in the center of the cerebral hemisphere that acts as a major relay station for sensory and motor signals to the cerebral cortex.

Amygdala

A limbic system structure in the brain involved in emotion processing, fear response, and memory.

Autonomic Arousal

Refers to physiological responses not under voluntary control, such as increased heart rate or sweating, often in reaction to stress or stimuli.