Q. 8 Critical damping is the (A) largest amount of damping for which no oscillation occurs in free vibration (B) smallest amount of damping for which no oscillation occurs in free vibration (C) largest amount of damping for which the motion is simple harmonic in free (D) smallest amount of damping for which the motion is simple harmonic in free vibration Q. 11 A rigid link PQ is 2 m long and oriented at 20 to the horizontal as shown in the figure. The magnitude and direction of velocity Vo, and the direction of velocity Vp are given. The magnitude of Vp (in m/s) at this instant is V = 1 m/s 45 (A) 2.14. (C) 1.21 20 Vp (B) 1.89 (D) 0.96