A Mass of 2 Kg Traveling at 3 M/s Undergoes

question 52

Multiple Choice

A mass of 2 kg traveling at 3 m/s undergoes a one-dimensional elastic collision with a group of four 1-kg masses that are at rest in contact with each other and lined up in the same direction as the velocity of the 2-kg mass. As a result of the collision

• A) the 2-kg mass comes to a stop and one of the 1-kg masses takes off at 6 m/s.
• B) the 2-kg mass comes to a stop and two of the 1-kg masses take off at 3 m/s.
• C) the 2-kg mass comes to a stop and three of the 1-kg masses take off at 2 m/s.
• D) the 2-kg mass comes to a stop and all four of the 1-kg masses take off at 2 m/s.
• E) the 2-kg mass and the five other masses travel at 1 m/s.

---

Definitions:

β Value

In statistics, represents the type II error rate, or the probability of failing to reject a false null hypothesis; also used to denote regression coefficients in multiple regression models.

Increasing

Becoming greater or larger in quantity, size, intensity, or degree.

Standard Deviation

A figure that gauges the scatter of data points around the mean value, demonstrating the extent of dispersion.

Test Statistic

A standardized value used in statistical hypothesis testing to determine whether to reject the null hypothesis.