A graph of v(t) is shown for a world-class track sprinter in a 100-m race. (See Figure 2.79). (a) What is his average velocity for the first 4 s? (b) What is his instantaneous velocity at t = 5 s ? (c) What is his average acceleration between 0 and 4 s? (d) What is his time for the race?
Lecture objectives 17 1. Describe the general functions of the nervous system Collecting information (sensory input) - monitor changes in internal and external environment Integration - interpret sensory input and determine proper response Motor output - active effector including muscle and glands 2. Describe the structure and functional organization of the nervous system 3. Identify and describe the distinguishing and anatomical features common to all neurons 5 distinguishable features of neurons Excitability, Conductivity, Secretion, Extreme Longevity, Amitotic Cell body (perikaryon, soma) - biosynthetic center, conducts electrical signals to axon, contains chromatophilic substance (Nissel Bodies) - free and round ribosomes De