Projectiles: Alice and Tom Dive from an Overhang into the Lake

question 17

Multiple Choice

Projectiles: 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. Just as they reach the lake below

• A) the speed of Alice is larger than that of Tom.
• B) the splashdown speed of Alice is larger than that of Tom.
• C) they will both have the same speed.
• D) the speed of Tom will always be 9.8 m/s larger than that of Alice.
• E) the speed of Alice will always be 25 m/s larger than that of Tom.

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Definitions:

Factorial Research

Factorial research involves experiments that study the effects of more than one independent variable at a time on a dependent variable.

Single-Factor Research

An experimental design involving only one independent variable.

Independent Variable

A variable in an experiment or study that is manipulated or changed to observe its effect on the dependent variable.

Factorial Research

A research design that involves two or more independent variables, also known as factors, and examines their interaction and main effects.