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Answer:
12.2 m/s
Step-by-step explanation:
Given:
s = 15.0 m
v = 0 m/s
a = -5.00 m/s²
Find: u
v² = u² + 2as
(0 m/s)² = u² + 2 (-5.00 m/s²) (15.0 m)
u = 12.2 m/s
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