ME 3133 Lecture : Lecture 1
Document Summary
Rectilinear kinematics (1d) (cid:149) position / displacement / distance traveled (cid:149) speed / velocity (cid:149) acceleration { a(t), a(s), a(v) } (cid:149) additional considerations. Vector vs scalar (cid:149) assignments for wednesday: Hand in: permission to post grades & academic honesty pledge. Success in dynamics: (cid:149) dynamics is about coordinate systems: Much of dynamics is essentially looking at relative motion of coordinate systems => some fixed/inertial, some moving. Begin thinking in terms of vectors! (cid:149) review vector operations & properties (appedix c in text) (cid:149) think in terms of vector properties. Can simplify the strategy for solving many problems. Answers can be expressed in terms of any coordinate system (cid:149) prudent choice of coordinate systems can simplify problem formulation & solution strategies (both kinematics & kinetics) (cid:149) dynamics is word problems: A = (x,y) (cid:149) m - mass (cid:149) (x,y) - position in 2d (cid:149) 2 degrees of freedom (dof) in the plane.
