A Horizontal Force of 200 N Is Applied to a 55-Kg

question 23

Multiple Choice

A horizontal force of 200 N is applied to a 55-kg cart across a 10-m level surface.If the cart accelerates at 2.0 m/s²,then what is the work done by the force of friction as it acts to retard the motion of the cart?

• A)-1 100 J
• B)-900 J
• C)-800 J
• D)-700 J

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Definitions:

Normally Distributed

Describes a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Starting Salaries

The initial amount of money that an employee earns annually when beginning a new job.

Standard Deviation

A system for evaluating the degree of dispersion or deviation among a collection of statistics.

Normally Distributed

A type of distribution in which data is symmetrically distributed with most of the observations clustering around the central peak and the probabilities for values further away from the mean tapering off equally on both sides.