At t = 0, a particle leaves the origin with a velocity of 9.0 m/s in the positive y direction and moves in the xy plane with a constant acceleration of 
m/s2. At the instant the x coordinate of the particle is 15 m, what is the speed of the particle?
A. 10 m/s
B. 16 m/s
C. 12 m/s
D. 14 m/s
E. 26 m/s
Answer: A
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a.
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b.
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c.
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