Two Objects Have Masses M and 5m, Respectively

question 113

Multiple Choice

Two objects have masses m and 5m, respectively. They both are placed side by side on a frictionless inclined ramp and allowed to slide down from rest without any air resistance. Which
One of the following statements about these objects is correct?

• A) It takes the heavier object 10 times longer to reach the bottom of the ramp than the lighter.
• B) It takes the lighter object 5 times longer to reach the bottom of the ramp than the heavier.
• C) It takes the lighter object 10 times longer to reach the bottom of the ramp than the heavier.
• D) The two objects reach the bottom of the ramp at exactly the same time.
• E) It takes the heavier object 5 times longer to reach the bottom of the ramp than the lighter.

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Definitions:

Standard Error

The typical deviation found in the distribution of sample statistics, often referring to the mean.

T-statistic

A type of statistic used in hypothesis testing, determined by the difference between the sample mean and the population mean divided by the standard error.

Degrees Of Freedom

The number of values in a final calculation of a statistic that are free to vary.

Null Hypothesis

A statement or hypothesis in statistics that suggests no significant difference or effect; it is the hypothesis that researchers aim to test against.