Two Identical Stones Are Dropped from Rest and Feel No

question 1

Multiple Choice

Two identical stones are dropped from rest and feel no air resistance as they fall. Stone A is dropped from height h, and stone B is dropped from height 2h. If stone A takes time t to reach the ground, stone B will take time

• A) 4t.
• B) 2t.
• C) t .
• D) t/ .
• E) t/2.

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Definitions:

Regression Analysis

A statistical method for modeling the relationship between a dependent variable and one or more independent variables.

Independent Variables

Variables in an experiment or model that are manipulated or controlled by the researcher to investigate their effect on dependent variables.

Dependent Variables

Variables in an experiment or model that are expected to change in response to changes in independent variables.

Intercept

In the context of a regression line, it is the expected value of the dependent variable when all independent variables are zero.