A Particle Decelerates Uniformly from a Speed of 30 Cm/s

question 54

Multiple Choice

A particle decelerates uniformly from a speed of 30 cm/s to rest in a time interval of 5.0 s.It then has a uniform acceleration of 10 cm/s² for another 5.0 s.The particle moves in the same direction along a straight line.The average speed over the whole time interval is

• A)20 cm/s
• B)35 cm/s
• C)38 cm/s
• D)100 cm/s
• E)12 cm/s

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Definitions:

USDA

United States Department of Agriculture, an agency overseeing food safety, agriculture, and related issues.

Healthful Meal

A meal that provides the necessary nutrients for good health, balancing proteins, fats, carbohydrates, vitamins, and minerals.

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An involuntary action of the body producing rapid muscle contractions to generate heat in response to cold.

ATP Hydrolysis

The chemical process of breaking down adenosine triphosphate (ATP) into adenosine diphosphate (ADP), releasing energy utilized by cells for various functions.