A Pulley System Raises a 1000-N Load with 100 N

question 16

Multiple Choice

A pulley system raises a 1000-N load with 100 N of input force. The efficiency of the system is

• A)10 percent.
• B)90 percent.
• C)100 percent.
• D)1000 percent.
• E)not enough information given

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Definitions:

Pupil

The adjustable opening in the center of the eye through which light enters, and whose size is regulated by the iris.

Physical Development

The process that starts in human infancy and continues into late adolescent concentrating on gross and fine motor skills as well as puberty.

Advancing Years

A phrase referring to the process of aging or getting older, often associated with gaining experience and wisdom but also facing physical and cognitive changes.

Reaction Time

The amount of time it takes to respond to a stimulus.