Two Blocks Are Released from the Top of a Building

question 76

Multiple Choice

Two blocks are released from the top of a building.One falls straight down while the other slides down a smooth ramp.If all friction is ignored,which one is moving faster when it reaches the bottom?

• A)The block that went straight down.
• B)The block that went down the ramp.
• C)They both will have the same speed.
• D)Insufficient information to work the problem.

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Definitions:

Pearson Correlation

A measure of the linear correlation between two variables X and Y, giving a value between +1 and -1 inclusive.

Covariance

A statistic that indicates the degree to which two variables vary together.

Nonlinear Relationship

A type of relationship between two variables where there is not a straight-line or proportional association.

Null Hypothesis

A hypothesis that suggests no significant difference or effect in a study.