Specifically, I do not know the answer to 18, but if someone could tell me the answers to all of them that would be great.
1 answer:
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Answer:
The answer to your question is: v = 121.46 m/s
Explanation:
Data
h = 30 m
vo = ?
dx = 300 m
Formula
t =
speed = distance / time
Process
t= 2.47 s
speed = 300 / 2.47
speed = v = 121.46 m/s