23
QuizMultiple Choice

Applying Vectors in the Plane — Cumulative exam

Question 23 • Precalculus

A dolphin jumps from the water with an initial velocity of 44 feet per second at an elevation angle of 60°. Which parametric equations model the dolphin’s path through the air?

Answer
A
x(t) = sin(60o)t + 44 and y(t) = –16t2 + cos(60o)t + 44
B
x(t) = cos(60o)t + 44 and y(t) = –16t2 + sin(60o)t + 44
C
x(t) = 44sin(60o)t and y(t) = –16t2 + 44cos(60o)t
D
x(t) = 44cos(60o)t and y(t) = –16t2 + 44sin(60o)t
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