Lecture 5 Vector Mechanics for Engineers: Dynamics MECN 3010 Department of Mechanical Engineering Inter American University of Puerto Rico Bayamon Campus Dr. Omar E. Meza Castillo

Lecture 5 MECN 4600 Inter - Bayamon 2 Tentative Lecture Schedule TopicLecture Kinematics of a Particle 1,2,3,4 Kinetics of a Particle: Force and Acceleration 5 Kinetics of a Particle: Work and Energy Kinetics of a Particle: Impulse and Momentum Planar Kinematics of a Rigid Body

Lecture 5 MECN 4600 Inter - Bayamon Force and Acceleration Topic 1: Kinematics of a Particle 3 "Lo peor es educar por métodos basados en el temor, la fuerza, la autoridad, porque se destruye la sinceridad y la confianza, y sólo se consigue una falsa sumisión” Einstein Albert

Lecture 5 MECN 4600 Inter - Bayamon Chapter Objectives  To state Newton’s Second Law of Motion and to define mass and weight.  To analyze the accelerated motion of a particle using the equation of motion with different coordinate system.  To write the equation of motion for an accelerating body.  To draw the free-body and kinetic diagrams for an accelerating body.  To investigate central-force motion and apply it to problems in space mechanics. 4

Lecture 5 MECN 4600 Inter - Bayamon Equation of Motion: Normal and Tangential Coordinates This equation is satisfied provided Recall that: it is often referred as centripetal force it is often referred as centripetal force

Lecture 5 MECN 4600 Inter - Bayamon 6

Lecture 5 MECN 4600 Inter - Bayamon

Lecture 5 MECN 4600 Inter - Bayamon

Lecture 5 MECN 4600 Inter - Bayamon

Lecture 5 MECN 4600 Inter - Bayamon

Lecture 5 MECN 4600 Inter - Bayamon

Lecture 5 MECN 4600 Inter - Bayamon

Lecture 5 MECN 4600 Inter - Bayamon

Lecture 5 MECN 4600 Inter - Bayamon

Lecture 5 MECN 4600 Inter - Bayamon Omar E. Meza Castillo Ph.D. Homework4  WebPage 15