LEARNING OBJECTIVES By the end of this section, you will be able to: We know from kinematics that acceleration is a change in velocity, either in its magnitude or in its direction, or both. In uniform circular motion, the direction…
LEARNING OBJECTIVES By the end of this section, you will be able to: In Kinematics, we studied motion along a straight line and introduced such concepts as displacement, velocity, and acceleration. Two-Dimensional Kinematics dealt with motion in two dimensions. Projectile motion is a…
Figure 6.1 This Australian Grand Prix Formula 1 race car moves in a circular path as it makes the turn. Its wheels also spin rapidly—the latter completing many revolutions, the former only part of one (a circular arc). The same physical principles…
Friction 5.2 Drag Forces 5.3 Elasticity: Stress and Strain
LEARNING OBJECTIVES By the end of this section, you will be able to: We now move from consideration of forces that affect the motion of an object (such as friction and drag) to those that affect an object’s shape. If…
LEARNING OBJECTIVES By the end of this section, you will be able to: Another interesting force in everyday life is the force of drag on an object when it is moving in a fluid (either a gas or a liquid).…
LEARNING OBJECTIVES By the end of this section, you will be able to: Friction is a force that is around us all the time that opposes relative motion between surfaces in contact but also allows us to move (which you have…
Figure 5.1 Total hip replacement surgery has become a common procedure. The head (or ball) of the patient’s femur fits into a cup that has a hard plastic-like inner lining. (credit: National Institutes of Health, via Wikimedia Commons) Chapter Outline 5.1 Friction 5.2 Drag…
Development of Force Concept Newton’s First Law of Motion: Inertia Newton’s Second Law of Motion: Concept of a System Newton’s Third Law of Motion: Symmetry in Forces Normal, Tension, and Other Examples of Forces Problem-Solving Strategies Further Applications of Newton’s…
LEARNING OBJECTIVES By the end of this section, you will be able to: One of the most remarkable simplifications in physics is that only four distinct forces account for all known phenomena. In fact, nearly all of the forces we…