Example 12.4 A metallic particle is subjected to the influence of a magnetic field as it travels downward through a fluid that extends from plate A to plate B. If the particle is released from rest at the midpoint C, s = 100 mm, and the acceleration is a = (4s) m/s², where s is in meters, determine the velocity of the particle when it reaches plate B, s = 200 mm, and the time it takes to travel from C to B. Solution: a = 45 m/s² A So-100 mm = 0.1m Vo-o m/s o be found VB = ? ds tB = ? a=dv krads = udv B 100 mm 200 mm