The Velocity of a Particle Moving Along the X Axis

question 14

Multiple Choice

The velocity of a particle moving along the x axis is given for t > 0 by v_x = (32.0t − 2.00t³) m/s, where t is in s. What is the acceleration of the particle when (after t = 0) it achieves its maximum displacement in the positive x direction?

• A) −64.0 m/s²
• B) zero
• C) 128 m/s²
• D) 32.0 m/s²
• E) −32.0 m/s²

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