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Alenkasestr [34]
3 years ago
13

7. Halfway through a cross country meet, a

Chemistry
1 answer:
kondor19780726 [428]3 years ago
7 0

Answer:

3m/s

Explanation:

Data obtained from the question include:

Initial speed (s1) = 4 m/s

Final speed (S2) = 7m/s

Change in speed (ΔS)

ΔS = s2 — s1

ΔS = 7 — 4

ΔS = 3m/s

Therefore, the change in speed is 3m/s

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