Each of Four Particles Moves Along an X Axis

question 67

Multiple Choice

Each of four particles moves along an x axis. Their coordinates (in meters) as functions of time (in seconds) are given by 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

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