Alice and Tom Dive from an Overhang into the Lake

question 29

Multiple Choice

Alice and Tom dive from an overhang into the lake below.Tom simply drops straight down from the edge,but Alice takes a running start and jumps with an initial horizontal velocity of 25 m/s.Neither person experiences any significant air resistance.Compare the time it takes each of them to reach the lake below.

• A) Alice reaches the surface of the lake first.
• B) Tom reaches the surface of the lake first.
• C) Alice and Tom will reach the surface of the lake at the same time.

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Definitions:

Standard Deviation

A measure of the amount of variation or dispersion of a set of values; a low standard deviation indicates that the values tend to be close to the mean.

Standard Error

A measure that quantifies the variation or dispersion of a sample mean from the population mean.

Population Proportion

The fraction or percentage of a population that possesses a certain property or characteristic.

Control Chart

A statistical tool used in quality control processes to monitor, control, and ascertain the stability of a process.