If a 20-kg object dropped in air has a terminal speed of 60 m/s, what was its acceleration at 30 m/s?
a. 9.80 m/s2
b. 7.35 m/s2
c. 4.90 m/s2
d. 2.45 m/s2
e. More information is needed to answer this question.
b
Physics & Space Science
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