A Hockey Puck Slides Off the Edge of a Horizontal

question 1

Multiple Choice

A hockey puck slides off the edge of a horizontal platform with an initial velocity of 20 m/s horizontally.The effects of air are negligible.The height of the platform above the ground is 2.0 m.What is the magnitude of the vertical component of the velocity of the puck just before it hits the ground?

• A)20 m/s
• B)6.3 m/s
• C)13 m/s
• D)15 m/s
• E)21 m/s

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Definitions:

Sampling Frame

A list or database from which a sample is drawn for a study or survey, containing all the elements of the population to be studied.

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A bias that occurs in survey results when the respondents choose themselves to participate, potentially leading to non-representative samples.