A Stone Is Thrown with an Initial Speed of 11

question 6

Multiple Choice

A stone is thrown with an initial speed of 11.5 m/s at an angle of 50.0 above the horizontal from the top of a 30.0-m-tall building. Assume air resistance is negligible, and g = 9.8 m/s2.
-What is the speed of the rock as it hits the ground?

• A)11.5 m/s
• B)26.8 m/s
• C)24.5 m/s
• D)16.2 m/s

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Definitions:

Obverse

The proposition that results from changing the quality of a categorical proposition and replacing the predicate term with its complement.

Contrapositive

The proposition that results from replacing the subject term in a categorical proposition with the complement of the predicate and the predicate with the complement of the subject.

Referents

Objects, events, or entities in the real world to which words or symbols refer or correspond, in the context of language and communication.

Quantity

A characteristic that describes the numerical aspect of something, including size, amount, or number.