CST.2 A person throws three rocks off a cliff of height h at exactly the same speed öl, each time, but throwing rock A almost vertically upward, rock B horizontally, and rock C almost vertically downward (see the diagram below). B h | Which rock hits the ground with the greatest speed? (Ignore air friction.) A. Rock A B. Rock B C. Rock C D. Rocks A and C hit with the same speed, faster than B. E. All three rocks hit with the same speed.

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Chapter1: Units, Trigonometry. And Vectors
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CST.2
A person throws three rocks off a cliff of height h
at exactly the same speed öl, each time, but throwing
rock A almost vertically upward, rock B horizontally, and
rock C almost vertically downward (see the diagram below).
B
h
|
Which rock hits the ground with the greatest speed? (Ignore
air friction.)
A. Rock A
B. Rock B
C. Rock C
D. Rocks A and C hit with the same speed, faster than B.
E. All three rocks hit with the same speed.
Transcribed Image Text:CST.2 A person throws three rocks off a cliff of height h at exactly the same speed öl, each time, but throwing rock A almost vertically upward, rock B horizontally, and rock C almost vertically downward (see the diagram below). B h | Which rock hits the ground with the greatest speed? (Ignore air friction.) A. Rock A B. Rock B C. Rock C D. Rocks A and C hit with the same speed, faster than B. E. All three rocks hit with the same speed.
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