A particle P is projected from a point O on a horizontal plane and moves freely under gravity. Its initial speed is ums and its angle of projection is sin() above the horizontal. At time 8s after projection, P is at the point 4. At time 32s after projection, P is at the point B. The direction of motion of Pat B is perpendicular to its direction of motion at 4. Find the value of u. Q5 * A. u=100 B. u=130 C. u=160 D. u=180

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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.