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Question
Each of four particles moves along an x axis. Their coordinates (in meters) as functions of time (in seconds) are given by
particle 1: x(t) = 3.5 - 2.7t3
particle 2: x(t) = 3.5 + 2.7t3
particle 3: x(t) = 3.5 + 2.7t2
particle 4: x(t) = 3.5 - 3.4t - 2.7t2
For which of these particles is the velocity increasing for t> 0?
A) All four
B) Only 1
C) Only 2 and 3
D) Only 2, 3, and 4
E) None of them
Answer
This answer is hidden. It contains 1 characters.
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