A Projectile Is Launched from the Edge of a Cliff

question 7

Multiple Choice

A projectile is launched from the edge of a cliff with a velocity of 15.0 m/s at an angle of 30.0 degrees above the horizontal. Ignoring air resistance, what is the velocity of the projectile 2.00 seconds later?

• A) 17.8 m/s at an angle of 38 degrees above the horizontal
• B) 11.4 m/s at an angle of 43 degrees below the horizontal
• C) 17.8 m/s at an angle of 43 degrees below the horizontal
• D) 11.4 m/s at an angle of 38 degrees below the horizontal
• E) 17.8 m/s at an angle of 43 degrees above the horizontal

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Definitions:

X Chromosome

One of the two sex chromosomes, X and Y, that determine the genetic sex of an individual. XX typically determines female and XY determines male.

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Paul Ekman

A psychologist known for his work in the study of emotions and their expression, including the identification of universal facial expressions tied to emotions across cultures.

Latin Word

A term or expression originating from Latin, an ancient Italic language historically used in the Roman Empire and still used in specific contexts like scientific nomenclature.