The Graph Shown Is of Position Versus Time

question 16

Multiple Choice

The graph shown is of position versus time.Which statement best describes it?

• A)v reaches a maximum of about 200 m/s.
• B)a is always negative.
• C)a is both positive and negative.
• D)v decreases with time.
• E)The velocity is never zero.

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Definitions:

Motor Activity

Physical actions and movements generated by the muscles and nervous system of an organism.

Motor Skills

Abilities required to perform movements and tasks, involving the coordination of muscles and the nervous system.

Cerebellum

A region of the brain that plays an essential role in motor control, and also involves in some cognitive functions such as attention and language, and in regulating fear and pleasure responses.

Posture

The way in which an individual holds their body while standing, sitting, or lying down, important for health and ergonomics.