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Margarita [4]
2 years ago
13

Please answer the image below

Mathematics
2 answers:
Lisa [10]2 years ago
8 0

Answer:

Step-by-step explanation:

Remark

This is one of those questions whose answer is hidden by the sloppiness of the wording. You don't really know what the starting speed is at 129 feet. I am going to assume the submarine is constantly moving at the same speed.

Givens

d1 = 129

d2 = 229

t = 3 sec

formula

(d2 - d1) = r * t

solution

(229 - 129) = r * t

100 = r * 3

100/3 = r

33.3 feet/s = r

Caution

if you know what d = vi*t + 1/2*a * t^2 is, you could get this wrong. If you do know the formula, leave a comment below my answer.

KatRina [158]2 years ago
6 0
I think it is -26 ft/per sec
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