When Sara ran a race on a straight track, her speed changed from 3 m/s to 6 m/s over a time period of 3 seconds. What was her acceleration during
that time?
Select one:
O a. 3 m/s2
O b. 1 m/s
O c 2 m/s
O d. none of the above
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Ответ:
Explanation:
3:4
4+ * 3 = 12+
3- * 4 = 12-
Therefore they cancel out to become neutral! As the HCF of 3 and 4 is 12!