The smooth bar rotates in the horizontal plane with constant angular velocity wn = 4 rad/s. If the radial velocity of the 1-kg collar Ais v, = 3 m/s when its radial position is r = 1.5 m. Applying the Newton's 2nd law. find two correct answers from the following: 3m O The magnitude of the heads velocity at the radial distance $r is given by sgrt( 32 ^2 - 27) m/s. O Radial acceleration a, = # – 16r = -g sin 0. The radial component of the acceleration is equal to zero. O The equation of motion for the collar perpendicular to the bar is given by N – gcos 0 = ag. %3D O The total acceleration of the collar is zero. 4/7

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Fluid Kinematics

The branch of science that deals with objects which are either in motion or stationary are studied under the branch of classical mechanics. Fluid mechanics is a subcategory of classical mechanics that deals with the behavior of fluids at rest (fluid statics) or in motion (posing some velocity). In fluid kinematics, studies focus on the associated motion of fluid particles or groups of particles, and its associated parameters like displacements, velocity, and acceleration without concerning about the forces that caused the motion. All the laws of classical mechanics are applied in the study of fluid kinematics.