A Shopper Steps on an Escalator Moving Downward at a Constant

question 45

Multiple Choice

A shopper steps on an escalator moving downward at a constant speed toward the bargain basement in a large department store.On his way down,the normal force exerted on him by the step of the escalator is

• A)greater than his weight when he is off the escalator.
• B)equal to his weight when he is off the escalator.
• C)less than his weight when he is off the escalator.
• D)dependent on how fast the escalator is moving.
• E)unknown; insufficient information is given to answer correctly.

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Definitions:

Nonfamily Households

Living arrangements consisting of individuals who live alone or with non-relatives, differing from family households which include related individuals.

Increased

Marked by growth or a rise in quantity, intensity, or level of particular phenomena or metrics.

Decreased

To become smaller or less in size, amount, intensity, or degree.

Demographic Changes

Alterations in the statistical characteristics of populations over time, including factors like age, race, employment, and marital status.