A 1000-Kg Automobile Moving with a Speed of 24 M/s

question 21

Multiple Choice

A 1000-kg automobile moving with a speed of 24 m/s relative to the road collides with a 500-kg automobile initially at rest. If the two stick together, what is the velocity in m/s of the two cars after the collision according to an observer in a truck moving 10 m/s in the same direction as the moving cars?

• A) 6
• B) 11
• C) 24
• D) 26
• E) 31

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Definitions:

Confidence Coefficient

The probability level associated with a confidence interval, often expressed as a percentage, indicating the degree of certainty in the estimate.

Type I Error

A statistical error that occurs when a true null hypothesis is incorrectly rejected.

Type II Error

A statistical error that occurs when a false null hypothesis is not rejected. It represents a miss or a failure to detect an effect or difference that actually exists.

Confidence Coefficient

The degree of certainty or probability that a specified parametric interval will contain the true value of an unknown population parameter.