A Worker Lifts a 20

question 54

Multiple Choice

A worker lifts a 20.0-kg bucket of concrete from the ground up to the top of a 20.0-m tall building.The bucket is initially at rest,but is traveling at 4.0 m/s when it reaches the top of the building.What is the minimum amount of work that the worker did in lifting the bucket?

Definitions:

Intrinsic Motives

Internal drives for behavior that come from personal satisfaction or the joy of doing a task, rather than external rewards.

Drive Level

The intensity of an urge or motivation that propels an individual towards a certain behavior to satisfy a need or achieve a goal.

Arousal

Refers to the physiological and psychological state of being awoken or alert, typically involving the activation of certain brain pathways and bodily responses.

Optimal Level

Refers to the most favorable point, degree, or amount of something for a particular purpose or outcome.