A hammer is being used to pull a nail from a board. The applied force is F = 140.0 N. However, this force is not enough to remove the nail. So, the hammer is not moving but can pivot about the black dot. The hammer itself weighs 7.00 Newtons. The coordinates of the hammer's center of mass are given relative to an origin at the pivot point. The drawing is to scale. The distance between adjacent concentric circles is 1.00 cm. Calculate the magnitude of the force the nail exerts on the hammer's claw. Answer: 743 N. 5 cm F CM: (3 cm, 8 cm)

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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.