The Engine of a 1250 Kg Car Provides a Forward

question 4

Multiple Choice

The engine of a 1250 kg car provides a forward directed force of 3651 N.If the car accelerates at a rate of 2.60 m/s²,what is the total resistive force (wind resistance,friction,etc. ) acting on the car?

• A)401 N
• B)8600 N
• C)2400 N
• D)485 N

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Definitions:

Sample

Subset or portion of a population.

Mean

The average value of a data set, obtained by dividing the sum of all the values by the number of values.

Confidence Interval

A span of numerical values, calculated from statistics of a sample, that is expected to encompass the value of a not yet known population parameter with a certain degree of confidence.

Sample

A subset of individuals or observations selected from a larger population for the purpose of statistical analysis.